英语词源字典 - 在线词源网站

Beguine (n.)[Beguine 词源字典]: late 15c., from French béguine (13c.), Medieval Latin beguina, a member of a women's spiritual order said to have been founded c.1180 in Liege in the Low Countries. They are said to take their name from the surname of Lambert le Bègue "Lambert the Stammerer," a Liege priest who was instrumental in their founding, and it's likely the word was pejorative at first.

The order generally preserved its reputation, though it quickly drew imposters who did not; nonetheless it eventually was condemned as heretical. A male order, called Beghards founded communities by the 1220s in imitation of them, but they soon degenerated (compare Old French beguin "(male) Beguin," also "hypocrite") and wandered begging in the guise of religion; they likely were the source of the words beg and beggar, though there is disagreement over whether Beghard produced Middle Dutch beggaert "mendicant" or was produced by it.

Cole Porter's "Begin the Beguine" (1935) refers to a kind of popular dance of West Indian origin, from French colloquial béguin "an infatuation, boyfriend, girlfriend," earlier "child's bonnet," and before that "nun's headdress" (14c.), from Middle Dutch beggaert, ultimately the same word.[Beguine etymology, Beguine origin, 英语词源]
Bengal: region in South Asia, named for its people, said to be from Banga, name of a founding chief. It is attested in Europe as far back as Marco Polo (1298), who wrote of Bangala.
epoch (n.): 1610s, epocha, "point marking the start of a new period in time" (such as the founding of Rome, the birth of Christ, the Hegira), from Medieval Latin epocha, from Greek epokhe "stoppage, fixed point of time," from epekhein "to pause, take up a position," from epi "on" (see epi-) + ekhein "to hold" (see scheme (n.)). Transferred sense of "a period of time" is 1620s; geological usage (not a precise measurement) is from 1802.
found (v.1): "lay the basis of, establish," late 13c., from Old French fonder "found, establish; set, place; fashion, make" (12c.), from Latin fundare "to lay the bottom or foundation" of something, from fundus "bottom, foundation" (see fund (n.)). Related: Founded; founding. Phrase founding fathers with reference to the creators of the American republic is attested from 1916.
found (v.2): "to cast metal," late 14c., originally "to mix, mingle," from Old French fondre "pour out, melt, smelt" (12c.), from Latin fundere (past participle fusus) "melt, cast, pour out," from PIE root *gheu- "to pour" (cognates: Greek khein "to pour," khoane "funnel," khymos "juice;" Gothic giutan, German gießen, Old English geotan "to pour;" Old English guttas (plural) "bowels, entrails;" Old Norse geysa "to gush;" German Gosse "gutter, drain"). Meaning "to cast metal" is from 1560s. Related: Founded; founding.
foundation (n.): late 14c., "action of founding," from Old French fondacion "foundation" (14c.) or directly from Late Latin fundationem (nominative fundatio) "a founding," noun of action from past participle stem of Latin fundare "to lay a bottom or foundation" (see found (v.1)). The Latin word is glossed in Old English by staþol.

Specialized sense of "establishment of an institution with an endowment to pay for it" is from late 14c.; meaning "that which is founded" (a college, hospital, etc.) is from 1510s; meaning "funds endowed for benevolent or charitable purposes" is from early 15c. Sense of "solid base of a structure" is from early 15c.
foundry (n.): c. 1600, "art of casting metal," from French fonderei, from fondre "to cast" (see found (v.2)). Meaning "establishment for the founding of metallic articles" is from 1640s. Related: Foundryman.
institution (n.): c. 1400, "action of establishing or founding (a system of government, a religious order, etc.)," from Old French institucion "foundation; thing established," from Latin institutionem (nominative institutio) "disposition, arrangement; instruction, education," noun of state from institutus (see institute). Meaning "established law or practice" is from 1550s. Meaning "establishment or organization for the promotion of some charity" is from 1707.
Kiev: Ukrainian Kyyiv, of unknown origin; explanation from the name of a founding prince named Kiy probably is folk etymology. Related: Kievan.
sorority (n.): 1530s, "a society of women, body of women united for some purpose," from Medieval Latin sororitas "sisterhood, of or pertaining to sisters," from Latin soror "sister" (see sister). Sense of "women's society in a college or university" attested by 1887 (Alpha Delta Pi claims founding in 1851).