Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
θελητόν want LXX.1Sam.15.22
θελητή a wanted LXX.Mal.3.12

Liddell-Scott-Jones

θελητός (thelētos) wanted G:A

θελητός-ητός, , όν,

wished for, desired, [LXX]

LSJ Scripture Refs: LXX.1Kgs.15.22LXX.Mal.3.12