change course
verb1
Synonym of change tack.
2
Of a river To alter its course as a result of silting up, flooding, or even an earthquake.
- The Tees changed course in 1771 during a raging flood, leaving part of Gainford in Yorkshire - although today the village is fairly and squarely in south Durham.1980, AA Book of British Villages, Drive Publications Ltd, page 195:
- Related terms
- change of course