[else] adv [ME elles, fr. OE; akin to L alius other, alter other of two, Gk allos other] (bef. 12c) 1 a: in a different manner or place or at a different time "how ~ could he have acted" "here and nowhere ~" b: in an additional manner or place or at an additional time "where ~ is gold found"
2: if not: otherwise "leave or ~ you'll be sorry"--used absolutely to express a threat "do what I tell you or ~"
[2]else adj (bef. 12c): other: a: being different in identity "it must have been somebody ~" b: being in addition "what ~ did he say"