LSJ
Pass., to be or become black, pf. Pass. μεμελάνωμαι LXX Jb. 30.30, Aët. 16.75.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
TBESG
to blacken (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