A.make exact or accurate, E.Hipp.469; ἀ. τάδε to be perfect in bearing these hardships, X.Cyr.2.3.13; arrange precisely, Ar.Ec.274:—Pass., to be exact or perfect, Ar.Ra.1483; “ἠκριβῶσθαι πρὸς πᾶσαν ἀρετήν” Arist.Pol.1279b1.—Later in Med., J.AJ17.2.2, Eust.1799.33, etc.
2. investigate accurately, understand thoroughly, “οἱ τάδ᾽ ἠκριβωκότες” E.Hec.1192, cf. X.Cyr.2.2.9; τοὔνομά μου σὺ ἀκριβοῖς; are you sure of . .? Pl.Chrm.156a; inquire carefully of, “τὸν χρόνον” Ev.Matt.2.7:—Pass., Vett.Val.265.3.
3. describe accurately, τι Phld.Lib.p.47 O.