Sally
late Middle English: from French saillie, feminine past participle (used as a noun) of saillir ‘come or jut out’, from Old French salir ‘to leap’, from Latin salire .
wiktionary
From Middle English saly, from Old English saliġ, sealh(“willow”). More at sallow.
Borrowed from French saillie, from sailli, the past participle of the verb saillir(“to leap forth”), itself from Latin salīre(“to leap”)
salvation + -y
Unknown.
etymonline
sally (n.)
1540s, "a sudden rush, dash, or springing forth; specifically of troops from a besieged place, attacking the besiegers," from French saillie "a rushing forth," noun use of fem. past participle of saillir "to leap," from Latin salire "to leap" (see salient (adj.)). Sally-port "gate or passage in a fortification to afford free egress to troops in making a sally" is from 1640s.
Sally
fem. proper name, alteration of Sarah (compare Hal from Harry, Moll from Mary, etc.). Sally Lunn cakes (1780) supposedly named for the woman in Bath who first made them and sold them in the streets. Sally Ann as a nickname for Salvation Army is recorded from 1927.
sally (v.)
1540s, from sally (n.). Related: Sallied; sallying.
