[1] The headword is athematic aorist, third person singular, of a Homeric verb which has no present tense. The upsilon represents an original digamma (see LSJ at a)pou/ras); the augment had a long vowel. Same glossing in other lexica, including Apollonius' Homeric Lexicon, and in the scholia to Homer, Iliad 15.462.
[2] This sense occurs first in Hesiod (Works & Days 240).