1590s, "situated under the moon," hence "earthly, mundane" (old cosmology), from Modern Latin sublunaris, from sub "under, beneath" (see sub-) + lunaris (see lunar).
transcendental motives for sublunary actions
fleeting sublunary pleasures
sublimation
sublime
subliminal
sublimity
sublingual
sublunary
subluxation
sub-machine-gun
submarine
submerge
submerse