The Aa River reference article from the English Wikipedia on 24-Apr-2004
(provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Aa River

For people who check facts
Aa is the name of a large number of small European rivers. The word is derived from the Old German aha, cognate to the Latin aqua, water (cf. German -ach). In German also Au and Aue exists, similar to å in North Germanic languages, with the meaning of moderately sized river. It is also an English noun, beloved of Scrabble players, meaning a stream.

The following are the more important streams of this name: