Lexical Definition

‎ἐπιτήδειος‎ epitḗdeios (ep-ee-tay'-di-os) necessary ^G:A
from (enough)

things which are needful.

• serviceable, i.e. (by implication) requisite

Abbott-Smith

ἐπιτήδειος, -α, -ον [in LXX: I Ch 28:2, Wi 4:5, I Mac 4:46, al. ;]
1. suitable, convenient,
2. useful, necessary: τὰ ἐ., necessaries, Ja 2:16,†

Abbott-Smith References

Liddell-Scott-Jones

ἐπιτήδειος-ειος, α, ον:

Ionic dialect ἐπιτήδειος-εος, έη, εον [Refs 5th c.BC+]: Doric dialect -τάδειος [ᾱ] [Refs 5th c.BC+]; -έστερος, -έστατος, [Refs 5th c.BC+]: (ἐπιτηδές):— made for an end or purpose, fit or adapted for it, suitable, convenient, νομαί [Refs], etc.; πρός τι [Refs 5th c.BC+]infinitive, χωρίον -ότατον ἐνιππεῦσαι most fit to ride in, [Refs 5th c.BC+]; ἐ. ὑπεξαιρεθῆναι convenient to be put out of the way, [Refs 5th c.BC+]; ἐ. ξυνεῖναι a fit person to live with, [Refs 5th c.BC+]; also ἐ. ὀστρακισθῆναι deserving to be ostracized, [Refs 5th c.BC+]; ἐκλεγόμενος τὸν ἐ. ἔπαισεν ἄν struck him who deserved it, [Refs 5th c.BC+]; but ἐ. ἐς ὀλιγαρχίαν ἐλθεῖν likely or inclined to come, [ἐπιτήδειοςεόν [ἐστι] οἰκέειν 5th c.BC: Herodotus Historicus 4.158, etc. ">Refs 5th c.BC+]

__II useful, serviceable, necessary,
__II.1 of things, ὀλιγαρχία ἐ. τοῖς Λακεδαιμονίοις fit or serviceable for.., [Refs 5th c.BC+]; καταστήσειν ἐς τὸ ἐ. to their advantage, [Refs 5th c.BC+]; οὐδὲν ηὕροντο ἐ. no advantage, [Refs 5th c.BC+]; ἱερὰ οὐκ ἐ., opposed to καλά, [Refs] substantive, τὰ ἐ. things requisite, necessaries, especially of provisions, [Refs 5th c.BC+]: also in singular, what is requisite, needful, [Refs]
__II.2 of persons, serviceable, friendly, [Refs 5th c.BC+]; τινί to one, [Refs 5th c.BC+]; ἐ. τῷ πατρί conformable to his will, [Refs 5th c.BC+]; ἐ. τοῖς πρασσομένοις favourable to.., [Refs 5th c.BC+]: also as substantive, a close friend, οἱ ἐ. one's friends, [Refs 5th c.BC+]
__II.3 with genitive, ={ἄξιος}, [Refs 2nd c.AD+]
__III adverb -είως, Ionic dialect -έως, studiously, carefully, ὑπηρετέεσθαι [Refs 5th c.BC+]
__III.2 suitably, conveniently, fitly, ποιέειν ἐ. [Refs]; ἐ. σφίσιν αὐτοῖς πολιτεύειν [Refs 5th c.BC+]: comparative -ότερον[Refs 5th c.BC+]
__III.3 ἐ. ἔχειν τινί to be on friendly terms with.., [Refs 2nd c.AD+]