horsewoman n.

"solidungulate perissodactyl mammal of the family Equidæ and genus Equus" [Century Dictionary], Old English hors "horse," from Proto-Germanic *harss- (source also of Old Norse hross, Old Frisian, Old Saxon hors, Middle Dutch ors, Dutch ros, Old High German hros, German Roß "horse"), of unknown origin. By some, connected to PIE root *kers- "to run," source of Latin currere "to run." Boutkan prefers the theory that it is a loan-word from an Iranian language (Sarmatian) also borrowed into Uralic (compare Finnish varsa "foal"),

The usual Indo-European word is represented by Old English eoh, Greek hippos, Latin equus, from PIE root *ekwo-. Another Germanic "horse" word is Old English vicg, from Proto-Germanic *wegja- (source also of Old Frisian wegk-, Old Saxon wigg, Old Norse vigg), which is of uncertain origin. In many other languages, as in English, this root has been lost in favor of synonyms, probably via superstitious taboo on uttering the name of an animal so important in Indo-European religion. For the Romanic words (French cheval, Spanish caballo) see cavalier (n.); for Dutch paard, German Pferd, see palfrey; for Swedish häst, Danish hest see henchman. As plural Old English had collective singular horse as well as horses, in Middle English also sometimes horsen, but horses has been the usual plural since 17c.

Used at least since late 14c. of various devices or appliances which suggest a horse (as in sawhorse), typically in reference to being "that upon which something is mounted." For sense of "large, coarse," see horseradish. Slang use for "heroin" is attested by 1950. To ride a horse that was foaled of an acorn (1670s) was through early 19c. a way to say "be hanged from the gallows." Horse latitudes first attested 1777, the name of unknown origin, despite much speculation. Horse-pistol, "large one-handed pistol used by horseback riders," is by 1704. A dead horse as a figure for something that has ceased to be useful is from 1630s; to flog a dead horse "attempt to revive interest in a worn-out topic" is from 1864.

HORSEGODMOTHER, a large masculine wench; one whom it is difficult to rank among the purest and gentlest portion of the community. [John Trotter Brockett, "A Glossary of North Country Words," 1829]

The term itself is attested from 1560s. The horse's mouth as a source of reliable information is from 1921, perhaps originally of racetrack tips, from the fact that a horse's age can be determined accurately by looking at its teeth. To swap horses while crossing the river (a bad idea) is from the American Civil War and appears to have been originally one of Abe Lincoln's stories. Horse-and-buggy meaning "old-fashioned" is recorded from 1926 slang, originally in reference to a "young lady out of date, with long hair." To hold (one's) horses "restrain one's enthusiasm, be patient" is from 1842, American English; the notion is of keeping a tight grip on the reins.

"adult female human," late Old English wimman, wiman (plural wimmen), literally "woman-man," alteration of wifman (plural wifmen) "woman, female servant" (8c.), a compound of wif "woman" (see wife) + man "human being" (in Old English used in reference to both sexes; see man (n.)). Compare Dutch vrouwmens "wife," literally "woman-man."

It is notable that it was thought necessary to join wif, a neuter noun, representing a female person, to man, a masc. noun representing either a male or female person, to form a word denoting a female person exclusively. [Century Dictionary]

The formation is peculiar to English and Dutch. Replaced older Old English wif and quean as the word for "female human being," as in Jesus's answer to his mother, in Anglo-Saxon gospels la, wif, hwæt is me and þe? (John ii:4 "Woman, what have I to do with thee?").

The pronunciation of the singular altered in Middle English by the rounding influence of -w-; the plural retains the original vowel. Meaning "wife," now largely restricted to U.S. dialectal use, is attested from mid-15c.

In American English, lady is "In loose and especially polite usage, a woman" [Craigie, "Dictionary of American English"]. This peculiarity was much commented upon by English travelers; in the U.S. the custom was considered especially Southern, but the English didn't bother with nice distinctions and regarded it simply as American. "This noble word [woman], spirit-stirring as it passes over English ears, is in America banished, and 'ladies' and 'females' substituted; the one to English taste mawkish and vulgar; the other indistinctive and gross. The effect is odd." [Harriet Martineau, 1837]

Woman-hater "misogynist" is from c. 1600. Women's work, that considered appropriate to women, is from 1660s. Women's liberation is attested from 1966; women's rights is from 1840, with an isolated example in 1630s.

c. 1200, from horse (n.) + man (n.).