Heb. 'ash, from a root meaning "to fall away," as moth-eaten
garments fall to pieces (Job 4:19; 13:28; Isa. 50:9; 51:8; Hos.
Gr. ses, thus rendered in Matt. 6:19, 20; Luke 12:33. Allusion
is thus made to the destruction of clothing by the larvae of the
clothes-moth. This is the only lepidopterous insect referred to
in Scripture. Bibliography Information Easton, Matthew George. M.A., D.D., "Biblical Meaning for 'Moth' Eastons Bible Dictionary". bible-history.com - Eastons; 1897.