C13: from Old French val, from Latin vallis valley
vale2
/ˈvɑːleɪ/
sentence substitute
1.
farewell; goodbye
Word Origin and History for vale
n.
river-land between two ranges of hills, c.1300, from Old French val "valley," from Latin vallem (nominative vallis, valles) "valley." Vale of years "old age" is from "Othello." Vale of tears "this world as a place of trouble" is attested from 1550s.