11 letters · 22 points in Scrabble
originLearned borrowing from Medieval Latin extrāvagāt- + English -ate (suffix forming verbs). Extrāvagāt- is the participial stem of extrāvagārī, from Latin extrā (“beyond, outside of”, preposition) (ultimately from Proto-Indo-European *h₁éǵʰs (“out”)) + vagārī (the present active infinitive of vagor (“to ramble, roam, stroll about, wander”), from vagus (“rambling, roaming, strolling, wandering”)…
Etymology from Wiktionary, CC BY-SA 3.0