Lexical Definition

‎ἀγαλλίασις‎ agallíasis (ag-al-lee'-as-is) joy G:N-F
from ‎ἀγαλλιάω‎

gladness, (exceeding) joy.

Usage: 7 forms in 22 verses
Form Translated As     In Verse(s)
ἀγαλλιάσεωσ of exultation Heb.1.9
ἀγαλλιάσει exultation Luke.1.44Jude.1.24
gladness Acts.2.46
ἀγαλλίασισ gladness Luke.1.14
αγαλλιάσεωσ exultation LXX.Ps.126.2
of exultation LXX.Ps.42.4LXX.Ps.45.7LXX.Ps.47.1LXX.Ps.63.5LXX.Ps.118.15
αγαλλιάσει exultation LXX.Ps.45.15LXX.Ps.100.2LXX.Ps.105.43LXX.Ps.107.22LXX.Ps.126.5LXX.Ps.126.6
in exultation LXX.Ps.132.16
αγαλλίασισ exultation LXX.Ps.30.5
αγαλλίασιν exultation LXX.Ps.51.8LXX.Ps.51.12
in exultation LXX.Ps.65.12

Abbott-Smith

ἀγαλλίασις, -εως, ἡ (< ἀγαλλιάω), [in LXX (most freq. in Pss. and often coupled with εὐφροσύνη, as Ps 44 (45):15) chiefly for גִּיל;]
exultation, exuberant joy: Lk 1:44, Ac 2:46, He 1:9, Ju 24; χαρὰ καὶ ἀ., Lk 1:14 (Cremer, 592).†

Abbott-Smith References

Book Refs
Psalms 45:15
Luke 1:14 · 1:44
Acts 2:46
Hebrews 1:9
Jude 1:24

Liddell-Scott-Jones

ἀγαλλίασις-ᾱσις, εως, ,

great joy, exultation, [LXX+NT+3rd c.AD+]

LSJ Scripture Refs: LXX.Job.8.21Luke.1.14