evade (v.)

"to decamp, be off," 1834, from Spanish vamos "let us go," from Latin vadamus, first person plural indicative or subjunctive of vadere "to go, to walk, go hastily," from PIE root *wadh- (2) "to go" (source also of Old English wadan "to go," Latin vadum "ford;" see wade (v.)).

early 15c., evasioun, "a way out, expedient," from Old French évasion and directly from Late Latin evasionem (nominative evasio) "a going out," noun of action from past-participle stem of Latin evadere "to escape" (see evade).