Georg Autenrieth, A Homeric Dictionary

καί : and, also, too, even; the purely copulative use needs no illustration, but the word is idiomatically employed in many ways that call for insight and feeling rather than translation; (Νέστωρ) ἀνόρουσε, λιγὺς Πυλίων ἀγορητής, | τοῦ καὶ ἀπὸ γλώσσης μέλιτος γλυκίων ῥέεν αὐδή, ‘even from whose tongue, etc.’ (comparing γλυκίων with λιγύς), Il. 1.249; this comparing καί may appear in both members of the statement, δότε δὴ καὶ τόνδε γενέσθαι | παῖδ᾽ ἐμόν, ὡς καὶ ἐγώ περ, ἀριπρεπέα Τρώεσσι, Il. 6.476; καί introducing an apodosis institutes a comparison between dependent clause and main clause, Il. 1.478 . καί appears in Greek often where we employ a disjunctive word, ἕνα καὶ δύο, ‘one or two,’ Il. 2.346. Combined w. other particles, καὶ εἰ, εἰ καί (see εἰ), καὶ δέ (δέ the connective), καὶ δή, καὶ μήν, καί ῥα, καί τε, καὶ.. πέρ (see πέρ), etc. καί sometimes suffers elision, κ᾽ ἔτι, Il. 23.526; freq. in crasis, χἡμεῖς (καὶ ἡμεῖς), κα?γώ, etc.