1815, "one who dines," agent noun from dine. Meaning "railway car for eating" is 1890, American English; of restaurants built to resemble dining cars (or in some cases actual converted dining cars) from 1935. The Diner's Club credit card system dates from 1952.
"heavy one-handed metal weapon, often with a spiked head, for striking," c. 1300, from Old French mace "a club, scepter" (Modern French massue), from Vulgar Latin *mattea (source also of Italian mazza, Spanish maza "mace"), from Latin mateola (in Late Latin also matteola) "a kind of mallet." The Latin word perhaps is cognate with Sanskrit matyam "harrow, club, roller," Old Church Slavonic motyka, Russian motyga "hoe," Old High German medela "plow" [de Vaan, Klein].
As a ceremonial symbol of authority or office, a scepter or staff having somewhat the form of a mace of war, it is attested from mid-14c. Related: Mace-bearer.
type of terrier, 1880, named for Airedale, a district in West Riding, Yorkshire. The place name is from the river Aire, which bears a name of uncertain origin.
Name registered by Kennel Club (1886), for earlier Bingley (where first bred), or broken-haired terrier. [Weekley]
1866 as a shortening of professional (n.). The adjective is attested by 1915 (in golfing's pro shop, workshop run by the resident professional at a club). The use of professional in reference to prostitutes seems to have accounted for proette in sports writing for "female pro golfer" (1968).
c. 1400, expulsioun, in medicine, "act of expelling matter from the body," from Old French expulsion or directly from Latin expulsionem (nominative expulsio), noun of action from past-participle stem of expellere "drive out" (see expel). From late 15c. as "forcible ejection, compulsory dismissal, banishment" as from a school or club.
"club or stick for hitting," implied by 1899 in "Tramping With Tramps" (saps), and perhaps originally a word from that subculture; said in earliest references to be a shortening of sapling, which was noted by 1712 as something you could use as a weapon to beat someone with. Also sapstick (1915).