verb (used without object), ex·trav·a·gat·ed, ex·trav·a·gat·ing. Archaic. 1.to wander beyond bounds; roam at
will; stray.
2.to go beyond the bounds of propriety or
reason.
Origin: 1590–1600; <
Medieval Latin extrāvagātus strayed, wandered away from, past participle of
extrāvagārī. See
extravagant,
-ate1