English
aftercost
From after- + cost.
Proto-Italic *komstaēō ‘to stand together’
Latin cōnstō ‘stand together’
Medieval Latin cōstō
Old French coster ‘to cost’
Middle English costen
English cost
Today it means
noun A subsequent expense related to but occurring after the source of an expenditure.
Language periods are conventional ranges, not dates for this word.
Etymograph / aftercost