I. intr. in pres., perish utterly, die away, A.Ag.857; “ἀποφθίνει τὰ χρηστά” S.Ph.457: also in pf. “ἀπέφθι^κα” Them.Or.28.341d: but mostly,
II. causal, in fut. -φθίσω, aor. ἀπέφθισα [ι_ Ep., ι^ Trag.]:—make to perish, waste away, destroy, “ἄνδρας ἀποφθίσειε θάλασσα” Hes.Op.666; πρὸς γυναικὸς δ᾽ ἀπέφθισεν βίον had his life taken by a woman's hand, A.Ag.1454 (lyr.); “ἔμελλέ ο᾽ Ἕκτωρ καὶ θανὼν ἀποφθίσαι” S.Aj.1027; “τὸν βαλόντ᾽ ἀποφθίσαι χρήζων” Id.Tr.709; of disease, cause death, be fatal, Hp.Aër.11.
2. most freq. in Pass., = Act. intr., perish, die, esp. in aor. with plpf. form ἀπέφθιτο [ι^] Od.15.268; imper. “ἀποφθίσθω” Il.8.429; opt. ἀποφθίμην [ι_] Od.10.51; Ep. and Lyr. part. ἀποφθίμενος [ι^] dead, Il.3.322, al., Ibyc.27, B.8.79 (not in Trag.): also in Ep. aor. 3pl. “ἀπέφθιθεν” Od.5.110, 133, 7.251 (v.l. ἀπέφθιθον).
3. Med., aor. 1 -φθίσασθαι [ι_] Q.S.14.545.