Etymology
Advertisement

Words related to diet

*dyeu- 

Proto-Indo-European root meaning "to shine," in derivatives "sky, heaven, god."

It forms all or part of: adieu; adios; adjourn; Asmodeus; circadian; deific; deify; deism; deity; deodand; deus ex machina; deva; dial; diary; Diana; Dianthus; diet (n.2) "assembly;" Dioscuri; Dis; dismal; diurnal; diva; Dives; divine; joss; journal; journalist; journey; Jove; jovial; Julia; Julius; July; Jupiter; meridian; Midi; per diem; psychedelic; quotidian; sojourn; Tuesday; Zeus.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit deva "god" (literally "shining one"); diva "by day;" Avestan dava- "spirit, demon;" Greek delos "clear;" Latin dies "day," deus "god;" Welsh diw, Breton deiz "day;" Armenian tiw "day;" Lithuanian dievas "god," diena "day;" Old Church Slavonic dini, Polish dzień, Russian den "day;" Old Norse tivar "gods;" Old English Tig, genitive Tiwes, name of a god.

Advertisement
dia- 

before vowels, di-, word-forming element meaning "through, in different directions, between," also often merely intensive, "thoroughly, entirely," from Greek dia "through; throughout," probably cognate with bi- and related to duo "two" (from PIE root *dwo- "two") with a base sense of "twice."

banting (n.)
system for weight loss through diet control, named for William Banting (1797-1878), the English undertaker who invented it, tested it himself, and promoted it in his 1863 booklet "Letter on Corpulence, Addressed to the Public." Although the word is a surname, it was used like a verbal noun in -ing. ("She is banting"). It consisted of eating lean meats and abstaining from fats, starches, and sugars.
dietary (adj.)

"pertaining to diet," 1610s, from Medieval Latin dietarius, from Latin diaetarius, from diaeta "prescribed way of life" (see diet (n.1)).

dietetic (adj.)

"pertaining to the rules for regulating the kind and quantity of food taken," 1570s, from Latin diaeteticus, from Greek diaitetikos "of or pertaining to diet," from diaita "way of life, regiment" (see diet (n.1)). Related: Dietical (1610s).

dietician (n.)

"one who practices some theory of diet," 1845, from diet (n.1) on model of physician. Earlier was dietist (c. 1600).

etiology (n.)
also aetiology, aitiology, "science of causes or causation," 1550s, from Late Latin aetiologia, from Greek aitiologia "statement of cause," from aitia "cause, responsibility" (from PIE *ai-t-ya-, from root *ai- (1) "to give, allot;" see diet (n.1)) + -logia "a speaking" (see -logy). Related: Etiologic; etiological.
dietal (adj.)

"pertaining to a diet in the 'assembly' sense," 1845; see diet (n.2) + -al (1).

dieting (n.)

c. 1400, "act of eating; act of regulating food intake according to regimen," verbal noun from diet (v.).