som・nif・er・ous /s()mnfrs ｜ smnf-/ adj. 眠くする, 催眠の (soporific). ・a somniferous drug [potion] 催眠剤, 眠り薬. 〜・ly adv. 《1602》: ⇒somni-, -ferous

som・nif・ic /s()mnfk ｜ sm-/ adj. ＝somniferous. 1721

som・nil・o・quence /s()mnlkwns ｜ sm-/ n. ＝somniloquy. 1841