Aach (variants Ach , Ache ; Aa ) is a widespread Upper German hydronym , from an Old High German aha (Proto-Germanic * ahwō ) ' running water ' (ultimately from PIE * hakʷā- ' (moving) water ' ). The word has also been reduced to a frequent suffix -ach in Alemannic and Austro-Bavarian toponymy. The word is cognate with Old English ǣ (reflected in English placenames as -ea , also Yeo , Eau ), Old Frisian ē , Old Saxon aha , Low Franconian Aa , Old Norse á , Gothic aƕa , all meaning ' river, running water ' .
16-506: [REDACTED] Look up Reconstruction:Proto-Germanic/ahwō in Wiktionary, the free dictionary. Aach is a German-language toponym and frequent element in place names and may refer to: Aach (toponymy) Rivers and streams [ edit ] Ach (Blau) , also known as Aach , tributary of the Blau River, Germany Aach, tributary of
32-513: A district of Pfullendorf , Baden-Württemberg, Germany Achh is Village & Union Council in Kharian Tehsil Gujrat District Punjab Pakistan People [ edit ] Aach (surname) , a German surname derived from the toponym See also [ edit ] ACH (disambiguation) , including Ach Ache (disambiguation) Aachen , North Rhine-Westphalia, Germany Topics referred to by
48-608: A river (most often the Mississippi River ) having a grouping or thicket of trees, and is often used in the Midwestern United States . Many rivers, if wide enough, can house considerably large islands. The term "towhead" was popularised by Mark Twain 's Adventures of Huckleberry Finn . In England, a river island in the Thames is referred to as an " ait " (or "eyot"). Majuli (a non-coastal landmass between two banks of
64-671: A river), located in the Brahmaputra River in Assam , India , is recognised by Guinness World Records as the world's largest inhabited riverine island, at 880 square kilometres (340 sq mi). The Encyclopædia Britannica cites another large non-coastal landmass, Bananal Island (an island that divides the Araguaia River into two branches over a 320 km (200-mile) length of water), located in Tocantins , central Brazil, to be
80-695: A river. Such changes may be caused by interactions with a tributary , or by the opposing fluvial actions of deposition and/or erosion that form a natural cut and meander . Nascent vegetation-free shoals and mudflats may dissipate and shift or build up into such islands through deposition; the process may be assisted through artificial reinforcement or natural factors, such as reeds , palms , evergreen trees or willows , that act as obstacles or erosion barriers, so that water flows around them. Islands may be small or large, covering many square kilometers, examples of which are given below. The term " towhead " implies an islet (small island) or shoal within
96-543: Is Salzach , now classed as a Fluss ( ' river ' ) but formerly as Ache as it was only navigable by raft , not by regular riverboats. Hydronymy in -ach generally indicates a Germanic settlement in the early medieval or migration period , while names in -bach indicate names of the high medieval period. In French , the Old Frankish form evolved into aix , as in Aix-en-Provence , Aix-les-Bains ;
112-560: Is among contenders as the smallest permanently-inhabited river island, or islet , with fixed dwellings. Umananda also lies in the Brahmaputra River . Many as tiny as Umananda or smaller, inhabited, exist on the Amazon basin and Bangladesh . Another island of comparable size to Umananda, Hatfield Island in the Guyandotte River in the U.S. state of West Virginia , has no permanent population, but contains several permanent buildings, namely
128-435: Is different from Wikidata All article disambiguation pages All disambiguation pages Aach (toponymy) The Old High German contraction from -aha to -aa , -â in compound hydronyms present from an early time (early 9th century). The simplex noun aha remained uncontracted, however, and Old High German -aha (Modern German -ach ) could be restituted in compounds at any time. Related
144-597: Is the German Aue (variant Au ) with a meaning ' river island , wetland , floodplain , riparian woodland ' , i.e. a cultivated landscape in a riparian zone . It is derived from the same root, but with a -yo- suffix (Proto-Germanic * awjō ). This word was also reduced to a suffix, as -au (as in Reichenau ). It is frequent as a river name, as in Große Aue , Aue (Elbe) , Aue (Weser) , etc., as well as
160-718: The K–12 schools serving the city of Logan and its surrounding area plus the main branch of the Logan County public library. On canalised rivers , such as the Thames and the Seine , one-home islands exist, containing houses constructed of permanent materials. Canals reduce erosion of the islands and in particular limit the height of flash flooding by maintaining substantial "heads" of water through barrages . One-home islands improved by river canals include Monkey , Friday , Holm and D'Oyly Carte islands. This list ranks river islands with
176-485: The Danube near Zwiefaltendorf, Baden-Württemberg, Germany Localities [ edit ] Aach, Baden-Württemberg , Germany Aach, a district of Dornstetten , Baden-Württemberg, Germany Aach, Rhineland-Palatinate , Germany Aach, a town in the community of Braunau, Switzerland Aach, a town in the municipality of Tübach , Switzerland Aach im Allgäu, a district of Oberstaufen , Bavaria, Germany Aach-Linz,
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#1732852177950192-454: The Italian reflex is -acco . Hydronyms such as Aar , Ahr , and Acher reflect a cognate Celtic word. River island A river island is any exposed landmass surrounded by river water. Properly defined, it excludes shoals between seasonally varying flows and may exclude semi-coastal islands in river deltas such as Marajó . These islands result from changes in the course of
208-784: The Rietaach, near Altstätten , Switzerland Memminger Aach , tributary of the Danube, Bavaria, Germany Tributaries of the Rhine which flow into Lake Constance: Aach (Arbon) , near Arbon, Arbon district, Switzerland Aach, near Romanshorn , Arbon district, Switzerland Radolfzeller Aach , near Radolfzell, Baden-Württemberg, Germany Seefelder Aach , also called Linzer Aach , Unteruhldingen, Germany Deggenhauser Aach, left tributary near Salem, Baden-Württemberg , Germany Stockacher Aach , near Bodman, Baden-Württemberg, Germany Mahlspürer Aach, left tributary near Stockach , Baden-Württemberg, Germany Zwiefalter Aach , tributary of
224-526: The name of a settlement, as in Aue, Saxony ; Au, St. Gallen ; Au, Vorarlberg ; Au am Rhein ; Au am Leithaberge ; etc. The river-name Aach in Upper Germany is reserved for broad, but non-navigable, running streams with noticeable gradient sufficient to power water mills ; it contrasts with Fluss used for navigable rivers on one hand, and with Bach for minor brooks or rivulets. An instructive example
240-444: The same term [REDACTED] This disambiguation page lists articles associated with the title Aach . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Aach&oldid=1211583114 " Categories : Disambiguation pages Place name disambiguation pages Hidden categories: Short description
256-496: The world's largest river island instead, at 19,162 square kilometres (7,398 sq mi). However, Bananal Island is not considered a riverine island by some geologists, as they consider the Araguaia River to form two distributaries, and Bananal Island to be the landmass between these two distributed rivers. However, Bananal Island is technically an island as it does not touch the main landmass at any point. Umananda Island , at 0.02 square kilometres (0.0077 sq mi),
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