ἀσκέωaskéō

to elaborate, i.e. (figuratively) train (by implication, strive)

Greek (New Testament) · G778

Meanings

1. to adorn (poët.).

2. to practise, exercise.

3. to endeavour: with infinitive, Acts 24:16.

Same root

σκεῦοςskeûos · G4632a vessel, implement, equipment or apparatus (literally or figuratively [specially, a wife as contributing to the usefulness of the husband])
ἀσκόςaskós · G779a leathern (or skin) bag used as a bottle

Where it appears

Appears 1 times in the Bible.

Acts 24:16 Because of this, I always try to maintain a clear conscience before God and all people.

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.