cavillous

But let him also remember, that, if a knowledge of etymology may be shown by spelling metallic, metalliferous, metallography, metallurgic, metallurgist, metallurgy, medallic, medallion, crystallize, crystalline, argillous, argillaceous, axillar, axillary, cavillous, cavillation, papillate, papillous, papillary, tranquillity, and pupillary, with double l, ignorance of it must needs be implied in spelling metaline, metalist, metaloid, metaloidal, medalist, coralaceous, coraline, coralite, coralinite, coraloid, coraloidal, crystalite, argilite, argilitic, tranquilize, and pupilage, in like manner.