aver
‘assert the truth of’
Lexical development traced from the Tamil root:
O.F. averer ‘verify, confirm, prove’ < Vulgar Lat. adverare ‘make true, prove to be true’ < Lat. ad ‘to’ + verus ’true’ < vuh < were-o- < Tamil uṟu
aver
English words derived from Tamil uṟu connoting ‘excess’