英语词源字典 - 在线词源网站

pa [pa 词源字典]: 1804, colloquial shortening of papa (q.v.).[pa etymology, pa origin, 英语词源]
Pablum: See pabulum.
pabulum (n.): "food" for anything, 1670s, from Latin pabulum "fodder, food, nourishment," from PIE root *pa- "to protect, feed" (see food) + instrumentive suffix *-dhlom.

Pablum (1932), derived from this, is a trademark (Mead Johnson & Co.) for a soft, bland cereal used as a food for infants and weak and invalid people, hence figurative use (attested from 1970, first by U.S. Vice President Spiro Agnew) in reference to "mushy" political prose.
paca (n.): Central and South American rodent, 1650s, from Spanish, from Tupi (Brazil) paca.
pace (n.): late 13c., "a step in walking; rate of motion," from Old French pas "a step, pace, trace," and directly from Latin passus, passum "a step, pace, stride," noun use of past participle of pandere "to stretch (the leg), spread out," probably from PIE *pat-no-, a nasalized variant of root *pete- "to spread" (cognates: Greek petannynai "to spread out," petalon "a leaf," patane "plate, dish;" Old Norse faðmr "embrace, bosom," Old English fæðm "embrace, bosom, fathom," Old Saxon fathmos "the outstretched arms"). Also, "a measure of five feet" [Johnson]. Pace-setter in fashion is from 1895.
pace (prep.): "with the leave of," 1863, from Latin pace, ablative of pax "peace," as in pace tua "with all deference to you;" from PIE *pak- "to fasten" (see pax). "Used chiefly as a courteous or ironical apology for a contradiction or difference of opinion" [OED].
pace (v.): 1510s, "to walk at a steady rate," from pace (n.). Meaning "to measure by pacing" is from 1570s. That of "to set the pace for" (another) is from 1886. Related: Paced; pacing.
pacemaker (n.): also pace-maker, 1884, originally a rider or boat that sets the pace for others in training. Meaning "the node of the heart which determines the beat rate" is from 1910; sense of "man-made device for stimulating and regulating heartbeat" is from 1951. From pace (n.) + maker.
pachinko (n.): 1953, from Japanese, "pinball machine," also "slingshot, handgun," from pachin, of echoic origin, + diminutive suffix -ko.
pachyderm (n.): 1838, from French pachyderme (c. 1600), adopted as a biological term 1797 by French naturalist Georges Léopole Chrétien Frédéric Dagobert, Baron Cuvier (1769-1832), from Greek pachydermos "thick-skinned," from pachys "thick, large, massive," from PIE *bhengh- "thick, fat" (cognates: Sanskrit bahu- "much, numerous" Avestan bazah- "height, depth," Hittite pankush "large," Old Norse bingr "heap," Old High German bungo "a bulb," Lithuanian biess "thick") + derma "skin" (see derma).
pachysandra (n.): 1813, from Modern Latin (1803), from Greek packhys "thick" (see pachyderm) + aner (genitive andros) "man" (see anthropo-), which is used in botany to mean "stamen, having stamens."
pacific (adj.): 1540s, "tending to make peace," from Middle French pacifique, from Latin pacificus "peaceful, peace-making," from pax (genitive pacis) "peace" (see peace) + root of facere "to make" (see factitious). Meaning "peaceful, calm" is first recorded 1630s. Related: Pacifical (mid-15c.); pacifically.
Pacific Ocean: 1660, from Medieval Latin Pacificum, neuter of Latin pacificus (see pacific); so called c. 1500 by Magellan when he sailed into it and found it calmer than the stormy Atlantic.
pacification (n.): "a setting at peace," early 15c., from Middle French pacification "act of making peaceful" (15c.), from Latin pacificationem (nominative pacificatio) "a peace-making," noun of action from past participle stem of pacificare "to pacify" (see pacify).
pacificism (n.): 1904, from pacific + -ism.
pacifier (n.): "one who pacifies or appeases," 1530s, agent noun from pacify. The meaning "nipple-shaped device for babies" is first recorded 1904.
pacifism (n.): 1905, from French pacifisme (by 1903, apparently coined by Émile Arnaud), from pacifique (see pacific).
pacifist (n.): 1903, from French pacifiste (see pacifism). Related: Pacifistic (1902).
pacify (v.): late 15c., "appease, allay the anger of (someone)," from Middle French pacifier "make peace," from Latin pacificare "to make peace; pacify," from pacificus (see pacific). Of countries or regions, "to bring to a condition of calm," c. 1500, from the start with suggestions of submission and terrorization. Related: Pacified; pacifying.
pack (n.): "bundle," early 13c., probably from a Low German word (compare Middle Dutch pac, pack "bundle," Middle Low German pak, Middle Flemish pac, attested from late 12c.), originally a term of wool traders in Flanders; or possibly from Old Norse pakki. All are of unknown origin.

Italian pacco is a Dutch loan word; French pacque probably is from Flemish. Meaning "set of persons" (usually of a low character) is c. 1300, older than sense of "group of hunting animals" (early 15c.). Extended to collective sets of playing cards (1590s), floating ice (1791), cigarettes (1924), and submarines (1943). Meaning "knapsack on a frame" is attested from 1916. Pack of lies first attested 1763.