GRC
LSJ
ητος, ἡ, pleasantness, delight, LXX Ps. 15 (16).11 (pl.), 26 (27).4, Aristeas 307, Poll. 3.97, Hsch. s.v. τέρψις.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ητος, ἡ, Vergnügen, Annehmlichkeit, Sp.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)
TBESG
delightfulness (MT)
Translators Brief lexicon of Extended Strongs for Greek based on Abbot-Smith, A Manual Greek Lexicon of the New Testament (1922) (=AS), with corrections and adapted by Tyndale Scholars