"material appliances or arrangements conducive to personal comfort," 1670s, plural of convenience in the sense "that which gives ease or comfort; a convenient article or appliance."

"comfort in grief, consolation," late 13c., from Old French solaz "pleasure, entertainment, enjoyment; solace, comfort," from Latin solacium "a soothing, assuaging; comfort, consolation," from solatus, past participle of solari "to console, soothe," from a suffixed form of PIE root *selh- "to reconcile" (source also of Greek hilaros). Adjectival form solacious is attested 16c.-17c.

late 14c., "that which consoles;" c. 1400, "act of consoling, alleviation of misery or distress of mind, mitigation of grief or anxiety," from Old French consolacion "solace, comfort; delight, pleasure" (11c., Modern French consolation), from Latin consolationem (nominative consolatio) "a consoling, comfort," noun of action from past-participle stem of consolari "offer solace, encourage, comfort, cheer," from assimilated form of com-, here perhaps an intensive prefix (see com-), + solari "to comfort" (see solace (n.)). The non-champion's consolation prize is recorded by 1853.

"alleviate the grief or mental distress of," 1690s, from French consoler "to comfort, console," from Latin consolari "offer solace, encourage, comfort, cheer," from assimilated form of com-, here perhaps an intensive prefix (see com-), + solari "to comfort" (see solace (n.)). Or perhaps a back-formation from consolation. The Latin word is glossed in Old English by frefran. Related: Consoled; consoling.

late 14c., "causing discomfort, dismal;" c. 1400, "unhappy, dejected, melancholy, wanting consolation or comfort," from Medieval Latin disconsolatus "comfortless," from Latin dis- "away" (see dis-) + consolatus, past participle of consolari "offer solace, encourage, comfort, cheer," from assimilated form of com-, here perhaps an intensive prefix (see com-), + solari "to comfort" (see solace (n.)). Related: Disconsolately; disconsolateness.

"devoid of comfort, without joy," 1570s, from cheer (n.) + -less. Related: Cheerlessly; cheerlessness.

also easy-chair, one designed especially for comfort, 1707, from easy + chair (n.).

"attended by or affording ease; promoting rest or comfort; quiet, peaceful, restful," late 14c., from ease (n.) + -ful.

"comfort, console in grief," late 13c.; also in Middle English "entertain, amuse, please," from Old French solacier "comfort, console" (often with a sexual connotation) and directly from Medieval Latin solatiare "give solace, console" (source also of Spanish solazar, Italian sollazzare), from Latin solacium (see solace (n.)). Related: Solaced; solacing.

c. 1200, "physical comfort, undisturbed state of the body; tranquility, peace of mind," from Old French aise "comfort, pleasure, well-being; opportunity," which is of uncertain origin. According to Watkins is ultimately from Latin adiacens "lying at," present participle of adiacere "lie at, border upon, lie near," from ad "to" (see ad-) + iacere "to lie, rest," literally "to throw" (from PIE root *ye- "to throw, impel"). Recent dictionaries in English and French seem to support this derivation, though older sources found objections to it. Compare adagio.

At ease "at rest, at peace, in comfort" is from late 14c.; as a military order (1802) the word denotes "freedom from stiffness or formality."