But on another theory perhaps meaning rather "foreign men" (compare Allobroges, name of a Celtic tribe in what is now Savoy, in Latin literally "the aliens," in reference to their having driven out the original inhabitants), in which case the al- is cognate with the first element in Latin alius "the other" and English else.
The defeat of the Alemanni by a Frank-led army at Strasburg in 496 C.E. led to the conversion of Clovis and the rise of Frankish political power. The Alemanni were absorbed into the Frankish Kingdom in 796. Not historically important, but through proximity and frequent conflict with the Franks their name became the source of French Allemand, the usual word for "German, a German," and Allemagne "Germany." In modern use, Alemannish, Alemannic refers to the dialects of modern southwestern Germany; Alamannic refers to the ancient tribes and their language.
"to move easily and gently without hard shocks," as a horse does when it first lifts the two legs on one side and then the two on the other, early 14c., from Old French ambler, of a horse or other quadruped, "go at a steady, easy pace" (12c.), from Latin ambulare "to walk, to go about, take a walk," perhaps a compound of ambi- "around" (from PIE root *ambhi- "around") and -ulare, from PIE root *el- "to go" (source also of Greek ale "wandering," alaomai "wander about;" Latvian aluot "go around or astray"). Until 1590s used only of horses or persons on horseback. Related: Ambled; ambling.
A similar formation appears in Old English wes þu hal, but this is not recorded as a drinking salutation. Sense extended c. 1300 to "liquor in which healths were drunk," especially spiced ale used in Christmas Eve celebrations. Meaning "a carousal, reveling" first attested c. 1600. Wassailing "custom of going caroling house to house at Christmas time" is recorded from 1742.
c. 1300, "freed from dregs or lees" (of ale, wine, etc.), probably literally "having stood long enough to clear," from Old French estale "settled, clear," from estal "place, fixed position," from Frankish *stal- "position," from Proto-Germanic *stol-, from PIE root *stel- "to put, stand, put in order," with derivatives referring to a standing object or place.
Cognate with Middle Dutch stel "stale" (of beer and old urine). Originally a desirable quality (in beer and wine); the meaning "not fresh" is first recorded late 15c. Figurative sense (of immaterial things) "old and trite, hackneyed" is recorded from 1560s. As a noun, "that which has become tasteless by exposure," hence "a prostitute" (in Shakespeare, etc.). Related: Staleness.
The name was also used to signify the evil inherent in human nature (as a consequence of Adam's fall), and other qualities (nakedness, gardening) associated with the biblical Adam. Adam's ale "water" is from 1640s. To not know (someone) from Adam "not know him at all" is first recorded 1784. The pet form of the name in Middle English was Addy, hence Addison; other old pet forms (Adkin, Adcock) also survive in surnames.