English
afterset
From after- + set.
Proto-Indo-European *sed- ‘to sit’
…
Proto-Germanic *satjaną ‘to set’
Proto-West Germanic *sattjan ‘to set’
Old English settan ‘to set’
Middle English setten ‘to seat’
English set
Today it means
noun That which is positioned after or behind.
Language periods are conventional ranges, not dates for this word.
Etymograph / afterset