English
infoset
From info + 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 An abstract data model of an XML document in terms of a set of information items.
Language periods are conventional ranges, not dates for this word.
Etymograph / infoset