Extended Strong's Greek Lexicon (Abbott-Smith based)
to expire
Usage: ἐκ-πνέω, -ῶ, to breathe out; sc. βίον, ψυχήν (expressed in cl., Æsch., al.; cf. LS, see word), to breathe one's last, expire: Mrk.15:37, 39 Luk.23:46. For force of aorist, see Swete, Mrk.15:37.† (AS)