Elsewhere

google

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Old English elles hwǣr (see else, where).

wiktionary

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From Middle English elswher, from Old English elles hwǣr and elles hwerġen(“elsewhere”); corresponding with else +‎ where.

etymonline

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elsewhere (n.)

"in another place, in other places," c. 1400, elswher, from Old English elles hwær (see else + where). Related: Elsewhither (Old English elleshwider.