Watter
– Scots have been using the word watter for many hundreds of years — at least since the medieval makar Robert Henryson described the Twa Mice drinking watter cleir, In steid off wyne in the late fifteenth century. Although not always reflected in the printed names recorded in gazetteers and street-maps, which are often standardised following English spelling, watter is frequently used in the names of rivers. A well-known example is the Water of Leith in Edinburgh; others include the Water of Aven in Aberdeenshire and the Water of Malzie in Wigtownshire.