Extended Strong's Greek Lexicon (Abbott-Smith based)
salt
Usage: ἅλας (T, ἅλα), -ατος, τό, late form of cl. ἅλς, -ος, ὁ (MM, VGT, see word), [in LXX chiefly for מְלַח ;] salt, lit, and figuratively: Mat.5:13, Mrk.9:50 Luk.14:34; like cl. ἅλες, wit, of wisdom and grace in speech: Col.4:6.† (AS)