英语词源字典 - 在线词源网站

pediatric (adj.)[pediatric 词源字典]: 1849, from Greek paid-, stem of pais "child" (see pedo-) + -iatric. [pediatric etymology, pediatric origin, 英语词源]
pediatrician (n.): 1884, from pediatric + -ian.
pediatrics (n.): 1884; from pediatric; see -ics.
pedicel (n.): 1670s, from Modern Latin pedicellus, diminutive of pediculus (see pedicle).
pedicle (n.): "footstalk of a plant," 1620s, from Latin pediculus "footstalk, little foot," diminutive of pedem (nominative pes) "foot," from PIE root *ped- (1) "a foot" (see foot (n.)).
pediculosis (n.): "lice infestation," 1809, with -osis + pediculus, diminutive of pedis "a louse," said in some sources to be akin to pedere "to break wind" (see petard) on notion of "foul-smelling insect" [Watkins].
pediculous (adj.): "infested with lice; pertaining to lice," 1540s, from Latin pediculosus, from pediculus "louse" (see pediculosis).
pedicure (n.): 1839, "one whose business is surgical care of feet" (removal of corns, bunions, etc.), from French pédicure, from Latin pes (genitive pedis) "foot," from PIE root *ped- (1) "a foot" (see foot (n.)) + curare "to care for," from cura "care" (see cure (n.1.)). In reference to the treatment itself, attested from 1890; specifically as a beauty treatment, from 1900.
pedigree (n.): early 15c., "genealogical table or chart," from Anglo-French pe de gru, a variant of Old French pied de gru "foot of a crane," from Latin pedem accusative of pes "foot," from PIE root *ped- (1) "a foot" (see foot (n.)) + gruem (nominative grus) "crane," cognate with Greek geranos, Old English cran; see crane (n.)).

On old manuscripts, "descent" was indicated by a forked sign resembling the branching lines of a genealogical chart; the sign also happened to look like a bird's footprint. Form influenced in Middle English by association with degree. Meaning "ancestral line" is mid-15c.; of animals, c. 1600. Related: Pedigreed.
pediment (n.): triangular part of the facade of a Greek-style building, 1660s, alteration of periment, peremint (1590s), of unknown origin, "said to be a workmen's term" [OED]; probably a dialectal garbling of pyramid, the connection perhaps being the triangular shape. Sometimes associated with ped- "foot." Other possibilities include Latin pedamentum "vine-stalk, prop," and Italian pedamento, which at the time this word entered English meant "foundation, basework, footing." Meaning "base, foundation" is from 1726, by inflience of Latin pedem "foot."
pedo-: before vowels ped-, word-forming element meaning "boy, child," from Greek pedo-, comb. form of pais "boy, child," especially a son, from PIE root *peu- "small, little, few, young" (see few (adj.)). The British form paed- is better because it avoids confusion with ped-.
pedology (n.): "scientific study of the soil," 1924, from Greek pedon "ground, earth," from PIE root *ped- (1) "foot" (see foot (n.)) + -logy. Related: Pedological. Earlier it was a word for "the study of children" (1894), from pedo-.
pedometer (n.): instrument for measuring distances covered by a walker, 1723, from French pédomètre (1712), a hybrid coined from Latin pedis (genitive of pes "foot;" see foot (n.)) + Greek metron "a measure" (see meter (n.2)). At first Englished as waywiser.
pedophile (n.): 1951, derived noun from pedophilia.
pedophilia (n.): 1900, from Greek pais (genitive paidos) "child" (see pedo-) + philos "loving" see -phile). First attested in an abstract of a report by Krafft-Ebing.
pedophiliac (adj.): 1951, from pedophilia.
pedophilic (adj.): 1920, from pedophilia + -ic.
peduncle (n.): 1753, from Modern Latin pedunculus "footstalk," diminutive of pes (genitive pedis) "foot," from PIE root *ped- (1) "a foot" (see foot (n.)).
pedunculated (adj.): 1752, from Modern Latin pedunculatus, from pedunculus (see peduncle).
pee (v.): 1788, "to spray with urine," euphemistic abbreviation of piss. Meaning "to urinate" is from 1879. Related: Peed; peeing. Noun meaning "act of urination" is attested from 1902; as "urine" from 1961. Reduplicated form pee-pee is attested from 1923.