出典:Wiktionary
Uncertain. If the penultimate vowel was short, perhaps from Ancient Greek ἀποκυλίω (apokulíō, “to roll away, roll back”). If long, then from Ancient Greek ἀπο- (apo-, “away”) + cūlō, another uncertain hapax from cūlus (“arse”), hence similar in formation to bugger off. Other proposals link it to oculus and even pōculum.
apocū̆lō (present infinitive apocū̆lāre, perfect active apocū̆lāvī, supine apocū̆lātum); first conjugation