ἀστακός
From LSJ
οὕτως καὶ ἡ πίστις, ἐὰν μὴ ἔχῃ ἔργα, νεκρά ἐστιν καθ' ἑαυτήν → so even the Faith, if it does not have deeds, and is on its own, is dead | the Faith without works is dead
English (LSJ)
ὁ,
A the smooth lobster, Philyll.13, Arist.HA526a11, 549b14, Matro Conv.66, Archestr.Fr.24.1; ὁ ἐν τοῖς ποταμοῖς ἀ. the river cray-fish, Arist.HA530a28. II hollow of the ear, Poll.2.85. (By assimilation from ὀστακός, the Att. form acc. to Ath.3.105b.)