To remain is to be left over, to continue to exist or to stay behind after others have gone.
(verb)See remain in Webster's New World College Dictionary
intransitive verb
Origin: ME remainen < OFr remaindre < L remanere < re-, back, behind + manere, to stay: see manor
See remain in American Heritage Dictionary 4
intransitive verb re·mained, re·main·ing, re·mains
Origin:
Origin: Middle English remainen
Origin: , from Old French remanoir, remainer
Origin: , from Latin remanēre
Origin: : re-, re-
Origin: + manēre, to remain; see men-3 in Indo-European roots
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