Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
ηπαλύνθησαν were made tender LXX.Ps.55.21
ηπαλύνθη was tender LXX.2Kgs.22.19
απαλυνεί He will make tender LXX.Job.33.25

Liddell-Scott-Jones

ἁπαλύνω (hapalunō) to make tender G:V

ἁπαλύνω-ύνω [],

soften, ἵππου τὸ στόμα, τὰς τρίχας, [Refs 5th c.BC+]; make plump, opposed to ἰσχναίνω, [Refs 5th c.BC+]

__2 make tender or delicate, τοὺς πόδας ὑποδήμασι[Refs 5th c.BC+]:—passive, to be softened, metaphorically, [LXX]

LSJ Scripture Refs: LXX.2Kgs.22.19LXX.Ps.54.21*