英语词汇deltoid的起源、历史背景-英语词源词典

词汇	deltoid
词源	deltoid adj. "triangular, resembling the Greek letter delta," 1741, in deltoid muscle, the large muscle of the shoulder, which is so called for its shape, from Greek deltoeides "triangular," literally "shaped like the letter delta;" see delta + -oid. As a noun, "deltoid muscle," by 1758 (delts, short for "deltoid muscles," is by 1977). Related: Deltoidal. Entries linking to deltoid delta n. c. 1200, name of the fourth letter of the Greek alphabet (equivalent to our D), which was shaped like a triangle. The name is from Phoenician daleth "tent door." Sense of "triangular island or alluvial tract between the diverging branches of the mouth of a great river" is because Herodotus used it of the delta-shaped mouth of the Nile. It was so used in English from 1550s and applied to other river mouths, of whatever shape, by 1790. Related: Deltaic; deltification. -oid word-forming element meaning "like, like that of, thing like a ______," from Latinized form of Greek -oeidēs (three syllables), from eidos "form," related to idein "to see," eidenai "to know;" literally "to see" (from PIE weid-es-, from root weid- "to see"). The -o- is connective or a stem vowel from the previous element. Often implying an incomplete or imperfect resemblance to the thing indicated. delt n. "deltoid muscle," short for deltoid (q.v.). Related: Delts. updated on September 17, 2018
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deltoid adj.

Entries linking to deltoid