英语词源字典 - 在线词源网站

Arcadia [Arcadia 词源字典]: see Arcadian.[Arcadia etymology, Arcadia origin, 英语词源]
Arcadian: "ideally rustic or rural; an idealized rustic," 1580s, from Greek Arkadia, district in the Peloponnesus, taken by poets as an ideal region of rural felicity, traditionally from Arkas (genitive Arkadas), son of Zeus, name of the founder and first ruler of Arcadia.
arcana (n.): "hidden things, mysteries," 1590s, a direct adoption of the Latin plural of arcanum "a secret, a mystery," from neuter of adjective arcanus "secret, hidden, private, concealed" (see arcane). Occasionally mistaken for a singular and pluralized as arcanas because arcana is far more common than arcanum.
arcane (adj.): 1540s, from Latin arcanus "secret, hidden, private, concealed," from arcere "close up, enclose, contain," from arca "chest, box, place for safe-keeping," from PIE *ark- "to hold, contain, guard" (cognates: Greek arkos "defense," arkein "to ward off;" Armenian argel "obstacle;" Lithuanian raktas "key," rakinti "to shut, lock").
arcanum (n.): proper singular form of arcana.
arch (n.): c. 1300, from Old French arche "arch of a bridge" (12c.), from Latin arcus "a bow" (see arc). Replaced native bow (n.1). Originally architectural in English; transferred by early 15c. to anything having this form (eyebrows, etc.).
arch (adj.): 1540s, "chief, principal," from prefix arch-; used in 12c. archangel, etc., but extended to so many derogatory uses (arch-rogue, arch-knave, etc.) that by mid-17c. it acquired a meaning of "roguish, mischievous," since softened to "saucy." Also found in archwife (late 14c.), variously defined as "a wife of a superior order" or "a dominating woman, virago."
arch (v.): early 14c., "to form an arch" (implied in arched); c. 1400, "to furnish with an arch," from arch (n.). Related: Arching.
arch-: also archi-, word-forming element meaning "chief, principal; extreme, ultra; early, primitive," from Latinized form of Greek arkh-, arkhi- "first, chief, primeval," comb. form of arkhos "chief" (see archon).
Archaean (adj.): "of the earliest geological age," 1872, from Greek arkhaios "ancient," from arkhe "beginning" (see archon).
archaebacteria (n.): plural of archaebacterium (1977), from archaeo- + bacterium (see bacteria).
archaeo-: before vowels archae-, word-forming element meaning "ancient, olden, primitive, primeval, from the beginning," from Latinized form of Greek arkhaio-, comb. form of arkhaios "ancient," from arkhe "beginning" (see archon).
archaeoastronomy (n.): 1971, from archaeo- + astronomy.
archaeologist (n.): 1824; see archaeology + -ist.
archaeology (n.): c. 1600, "ancient history," from French archéologie (16c.) or directly from Greek arkhaiologia "the study of ancient things;" see archaeo- + -ology. Meaning "scientific study of ancient peoples" recorded by 1825. Related: Archaeological; archaeologically.
archaeopteryx (n.): oldest known fossil bird, 1859, Modern Latin, from archaeo- "ancient, primitive" + Greek pteryx "wing" (see pterodactyl).
archaic (adj.): 1810, from or by influence of French archaique (1776), ultimately from Greek arkhaikos "old-fashioned," from arkhaios "ancient," from arkhe "beginning" (see archon). Archaical is attested from 1799.
archaism (n.): 1640s, "retention of what is old and obsolete," from Modern Latin archaismus, from Greek arkhaismos, from arkhaizein "to copy the ancients" (in language, etc.); see archaic. Meaning "an archaic word or expression" is from c. 1748.
archangel (n.): late 12c., from Old French archangel (12c.) or directly from Late Latin archangelus, from Greek arkhangelos "chief angel," from arkh- "chief, first" (see archon) + angelos (see angel). Replaced Old English heah encgel.
archangelic (adj.): mid-15c.; see archangel + -ic.