英语词源字典 - 在线词源网站

ape [ape 词源字典]: ape: [OE] Ape (in Old English apa) has cognates in several Germanic languages (German affe, Dutch aap, Swedish apa), and comes from a prehistoric West and North Germanic *apan (perhaps originally borrowed from Celtic). Until the early 16th century, when English acquired the word monkey, it was the only term available for any of the non-human primates, but from around 1700 it began to be restricted in use to the large primates of the family Pongidae.
[ape etymology, ape origin, 英语词源]
Homo sapiens (n.): 1802, in William Turton's translation of Linnæus, coined in Modern Latin from Latin homo "man" (technically "male human," but in logical and scholastic writing "human being;" see homunculus) + sapiens, present participle of sapere "be wise" (see sapient). Used since in various Latin or pseudo-Latin combinations intended to emphasize some aspect of humanity, as in Henri Bergson's Homo faber "man the tool-maker," in "L'Evolution Créatrice" (1907). Homo as a genus of the order Primates is first recorded 1797.
pithecanthropus (n.): genus of extinct primates, 1895, from Modern Latin, literally "monkey-man," from Greek pithekos "ape" + anthropos "man" (see anthropo-). Coined 1868 by Haeckel as a name for a hypothetical link between apes and men (attested in English in this sense from 1876); applied by Dr. Eugène Dubois (1858-1940), physician of the Dutch army in Java, to remains he found there in 1891.
primate (n.): "high bishop," c. 1200, from Old French primat and directly from Medieval Latin primatem (nominative primas) "church primate," noun use of Late Latin adjective primas "of the first rank, chief, principal," from primus "first" (see prime (adj.)).

Meaning "animal of the biological order including monkeys and humans" is attested from 1876, from Modern Latin Primates (Linnæus), from plural of Latin primas; so called from supposedly being the "highest" order of mammals (originally also including bats).
primatology (n.): "study of Primates," 1941, from primate (n.) + -ology.
pollex: "The innermost digit of a forelimb, especially the thumb in primates", Mid 19th century: from Latin, literally 'thumb or big toe'.