προσαιρεῖσθαι

From LSJ

Ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either

Plato, Apology 21d

Greek > English (Woodhouse Verbs Reversed)

(see also προσαιρέομαι): associate with oneself, choose in addition, take as associate

Lexicon Thucydideum

adsumere, to take to oneself, adopt, 4.29.1,
adiungere (in imperio), to associate with (in rule), 5.63.4, 7.16.1.