avale verb (-ed/-ing/-s) Etymology: Middle English avalen, from Middle French avaler, from Old French, from aval downward, from a to (from Latin ad) + val valley — more at at, vale transitive verb 1.obsolete: lower : let fall 2.obsolete: to bring low : abase intransitive verb 1.obsolete: descend, dismount 2.obsolete: to sink down : flow down