Lexical Definition

‎ἐπιστηρίζω‎ epistērízō (ep-ee-stay-rid'-zo) to strengthen G:V
from ‎ἐπί‎ and ‎στηρίζω‎

confirm, strengthen.

Usage: 11 forms in 15 verses
Form Translated As     In Verse(s)
ἐπιστηρίζων strengthening Acts.15.41Acts.18.23
ἐπιστηρίζοντεσ strengthening Acts.14.22
ἐπεστήριξαν strengthened Acts.15.32
επιστηριώ I will stay LXX.Ps.32.8
επιστηριχθή should stay LXX.2Kgs.18.21
επιστηρισθή should stay LXX.Isa.36.6
επιστηριζομένη staying LXX.Song.8.5
επεστηρίχθην I stayed LXX.Ps.71.6
επεστηρίχθη stayed LXX.Ps.88.7
επεστήριξασ stayed LXX.Ps.38.2
επεστήρικτο he stayed LXX.Judg.16.29
stayed LXX.Gen.28.13
stays LXX.Judg.16.26
was stayed LXX.2Sam.1.6

Abbott-Smith

ἐπι-στηρίζω [in LXX for סָמַךְ, etc. ;]
to make stronger, confirm: c. acc, Ac 14:22 15:32, 41.†

Abbott-Smith References

Book Refs
Acts 14:22 · 15:32 · 15:41

Liddell-Scott-Jones

ἐπιστηρίζω-ίζω,

cause to rest on, ἐπιστηρίζωιῶ ἐπί σε τοὺς ὀφθαλμούς μου[LXX]; make to lean on, τί τινι [Refs 3rd c.AD+]; set over, Δεῖμον κεραυνῷ [Refs 4th c.AD+]; confirm, τινά [NT]:—passive, to be supported, ἐν τῷ ὕδατι [Refs 4th c.BC+]; ἐπιστηρίζωιχθήσομαι and ἐπεστηρίχθη ἐπὶ [τοὺς κίονας], [LXX+2nd c.AD+]

LSJ Scripture Refs: LXX.Ps.31.8*Acts.15.32LXX.Judg.16.26LXX.Exod.17.12