Latin somnus sleep + English -facient
circa 1890, in the meaning defined above
somnial
somnifacient
somniferous
“Somnifacient.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/somnifacient. Accessed 8 Nov. 2024.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
See Definitions and Examples »
Get Word of the Day daily email!
Share