English

sibset

From sib + set.

A compound of sib + set

Proto-Indo-European *sebʰ-

Proto-Germanic *sibjaz ‘related’

Old English sibb ‘related, akin, sib’

Middle English sib

English sib

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 A group of siblings.

Language periods are conventional ranges, not dates for this word.