Coming or occurring after something else in time; the act of arriving later. As a noun, the process of following in sequence.
Gerund form of 'come' with prefix 'after-' from Old English. The -ing ending converts the action into both an adjective and noun form in medieval English.
In old texts about inheritance, 'aftercoming children' meant those born after an initial will was written—which actually created legal chaos and led to formal rules about how wills should be updated.
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