Etymology
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*kwrep- 
Proto-Indo-European root meaning "body, form, appearance," probably a verbal root meaning "to appear."

It forms all or part of: corporal (adj.) "of or belonging to the body;" corporate; corporation; corporeal; corps; corpse; corpulence; corpulent; corpus; corpuscle; corsage; corse; corset; incorporeal; incorporate; leprechaun; midriff.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit krp- "form, body;" Avestan kerefsh "form, body;" Latin corpus "body" (living or dead); Old English hrif "belly," Old High German href "womb, belly, abdomen."
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*bhorh- 
Proto-Indo-European root meaning "hole," with verbal form *bherh- "to pierce, strike."

It forms all or part of: bore (v.1) "to drill through, perforate;" Boris; burin; foramen; Foraminifera; foraminous; interfere; interference; perforate; perforation.

It is the hypothetical source of/evidence for its existence is provided by: Greek pharao "I plow;" Latin ferire "to knock, strike," forare "to bore, pierce;" Lithuanian barti "to scold, accuse, forbid;" Old Church Slavonic barjo "to strike, fight," brati "to fight," Russian borot "to overpower;" Albanian brime "hole;" Old English borian "to bore through, perforate," Old Norse berja "to beat, hit," Old High German berjan "to hit, pound, knead."
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*per- (2)

Proto-Indo-European root meaning "to lead, pass over." A verbal root associated with *per- (1), which forms prepositions and preverbs with the basic meaning "forward, through; in front of, before," etc.

It forms all or part of: aporia; asportation; comport; deport; disport; emporium; Euphrates; export; fare; farewell; fartlek; Ferdinand; fere; fern; ferry; firth; fjord; ford; Fuhrer; gaberdine; import; important; importune; opportune; opportunity; passport; porch; pore (n.) "minute opening;" port (n.1) "harbor;" port (n.2) "gateway, entrance;" port (n.3) "bearing, mien;" port (v.) "to carry;" portable; portage; portal; portcullis; porter (n.1) "person who carries;" porter (n.2) "doorkeeper, janitor;" portfolio; portico; portiere; purport; practical; rapport; report; sport; support; transport; warfare; wayfarer; welfare.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit parayati "carries over;" Greek poros "journey, passage, way," peirein "to pierce, pass through, run through;" Latin portare "to carry," porta "gate, door," portus "port, harbor," originally "entrance, passage," peritus "experienced;" Avestan peretush "passage, ford, bridge;" Armenian hordan "go forward;" Old Welsh rit, Welsh rhyd "ford;" Old Church Slavonic pariti "to fly;" Old English faran "to go, journey," Old Norse fjörðr "inlet, estuary."

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