Somnolent first appeared in the late 15th century in the redundant phrase "somnolent sleep." It came into English by way of Anglo-French from the Latin word somnolentus, which itself comes from somnus, meaning "sleep." Another offspring of somnus is somnambulism, a synonym of sleepwalking. Insomnia is also a member of this sleepy word family, though it might be considered the black sheep, since it means, of course, "the inability to sleep."
trying to teach somnolent students on a very hot day the somnolent hum of insects in the grass
Recent Examples on the WebAt an uncommon hour, when devoted nightcrawlers are switching from liquor to beer, and even the city that never sleeps slows to a semi-somnolent pace, the two fledgling men’s stars traded spectacular winners in Queens. Jason Gay, WSJ, 8 Sep. 2022 Bahnsen grew up reading Ditlevsen’s poems, and this one has a somnolent quality that lends itself to her dreamy, even cloudlike designs.New York Times, 9 Mar. 2022 Just last week, many European countries were still so somnolent about the threat Russia posed to Ukraine that Germany’s spy chief was caught unawares in Kyiv when the Kremlin invasion started.Washington Post, 28 Feb. 2022 The Herald Examiner building remained standing, albeit in a somnolent state.Los Angeles Times, 15 Nov. 2021 Today, yellow butterflies adorn Aracataca, a somnolent mini-Macondo a 2.5-hour drive south of the Caribbean city of Santa Marta. Christopher Baker, Travel + Leisure, 7 Jan. 2022 On Saturday, Tiger Stadium could be downright somnolent for a kickoff at 11 a.m. local time. Edgar Thompson, orlandosentinel.com, 14 Oct. 2021 Although her eyes are open and piercingly blue, there is something of a somnolent haze about her, like a girl who has not yet awakened to her adulthood. Tom Teicholz, Forbes, 15 Sep. 2021 Outside Jordan, the queen’s Jackie Kennedy-like mystique helped raise Jordan’s profile, sometimes rattling the kingdom’s largely somnolent diplomatic corps. Laura King, Los Angeles Times, 6 Apr. 2021 See More
Word History
Etymology
Middle English sompnolent, from Anglo-French, from Latin somnolentus, from somnus sleep; akin to Old English swefn sleep, Greek hypnos