The definition of appertain is to belong as a function or to relate to something.
(verb)An example of something that appertains to members of the military is a distinction of honor.
See appertain in Webster's New World College Dictionary
intransitive verb
Origin: ME apertenen < OFr apertenir < LL appertinere < ad-, to + pertinere: see pertain
See appertain in American Heritage Dictionary 4
intransitive verb ap·per·tained, ap·per·tain·ing, ap·per·tains
Origin:
Origin: Middle English appertenen
Origin: , from Old French apartenir
Origin: , from Vulgar Latin *appartenēre
Origin: , from Late Latin appertinēre
Origin: : ad-, ad-
Origin: + pertinēre, to belong; see pertain
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