- woof (n.1)
- "weft, texture, fabric," Old English owef, from o- "on" + wefan "to weave" (see weave). With excrescent -w- by influence of warp or weft.
- woof (n.2)
- dog bark noise, first recorded 1804, echoic.
- crinoline (n.)
- 1830, from French crinoline "hair cloth" (19c.), from Italian crinolino, from crino "horsehair" (from Latin crinis "hair") + lino "flax, thread," from Latin linum (see linen). So called from the warp and woof fibers of the original mixture.
- woofer (n.)
- "loudspeaker for bass notes," 1935, imitative.
- warp (n.)
- "threads running lengthwise in a fabric," Old English wearp, from Proto-Germanic *warpo- (source also of Middle Low German warp, Old High German warf "warp," Old Norse varp "cast of a net"), from PIE *werp- "to turn, bend" (see warp (v.)). The warp of fabric is that across which the woof is "thrown." Applied in 20c. astrophysics to the "fabric" of space-time, popularized in noun phrase warp speed by 1960s TV series "Star Trek."
- mule (n.1)
- "offspring of donkey and horse," from Old English mul, Old French mul "mule, hinny" (12c., fem. mule), both from Latin mulus (fem. mula) "a mule," probably from a pre-Latin Mediterranean language.
The mule combines the strength of the horse with the endurance and surefootedness of the ass, and is extensively bred for certain employments for which it is more suited than either; it is ordinarily incapable of procreation. With no good grounds, the mule is a proverbial type of obstinacy. [OED]
Properly, the offspring of a he-ass and a mare; that of a she-ass and a stallion is technically a hinny. Used allusively of hybrids and things of mixed nature. As a type of spinning machine, attested from 1797 (so called because a hybrid of distinct warp and woof machines). Meaning "obstinate, stupid, or stubborn person" is from 1470s; that of "narcotics smuggler or courier" first attested 1935.