From a (as a negative particle) and a derivative of themis (statute; from the base of tithemi); illegal; by implication, flagitious -- abominable, unlawful thing.
see GREEK a
see GREEK tithemi
ἀθεμίτοις (athemitois) − 1 Occurrence
ἀθέμιτόν (athemiton) − 1 Occurrence