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Origin and history of pectoral

pectoral(adj.)

1570s, "of or pertaining to the breast or chest," from Latin pectoralis "of the breast," from pectus (genitive pectoris) "breast, chest," a word of unknown origin. De Vaan considers Old Irish ucht "breast, chest" as "a likely cognate, if it reflects earler *pektu-." Pectoral muscle is attested from 1610s.

pectoral(n.)

early 15c., "ornament worn on the breast," from Old French pectoral and directly from Latin pectorale "breastplate," noun use of neuter of adjective pectoralis (see pectoral (adj.)). Related: Pectorally. As a shortened form of pectoral muscle, attested from 1758. Slang shortening pec for this is first recorded 1966. Related: Pectorals; pecs.

Entries linking to pectoral

1570s, "severe inflammatory infection of the throat," from Latin angina "infection of the throat, quinsy," literally "a strangling," from Greek ankhonē "a strangling" (from PIE root *angh- "tight, painfully constricted, painful"); probably influenced in Latin by angere "to throttle." Angina pectoris "acute, constricting pain in the chest" is from 1744, from Latin pectoris, genitive of pectus "chest" (see pectoral (adj.)). Related: Anginal.

c. 1600, "to clear out the chest or lungs," a literal use of Latin expectoratus, past participle of expectorare, which in classical use was figurative, "scorn, expel from the mind," literally "drive from the breast, make a clean breast," from ex "out" (see ex-) + pectus (genitive pectoris) "breast" (see pectoral (adj.)). Its use as a euphemism for "spit" is recorded by 1827. The classical Latin figurative sense appears in English 17c. but is now obsolete. Related: Expectorated; expectorating.

1580s, "wall or rampart rising breast-high," from French parapet "breastwork" (16c.), or directly from Italian parapetto, from para- "defense" (see para- (2)) + petto "breast," from Latin pectus (see pectoral (adj.)). Meaning "low wall at the edge of a structure to keep people from falling off" is from 1590s.

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