somnific

From Latin somnificus, from somnus (“sleep”) + facere (“to make”). By surface analysis, somn- +‎ -ific.

• (Received Pronunciation) IPA^(key): /sɒmˈnɪf.ɪk/
• (General American) IPA^(key): /sɑmˈnɪf.ɪk/
• Rhymes: -ɪfɪk

somnific (comparative more somnific, superlative most somnific)

1. Causing sleep; somniferous.

• “somnific”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.