-kin · suffix1
- Proto-Indo-European*ǵenh₁-
- Proto-Germanic*kunją
- Proto-West Germanic*kuni
- Old Englishcynna
- English today-kin
From Middle English -kin, -kinne, -kunne, from Old English cynna, the genitive plural of cynn (“kind, sort, rank”), used in compounds.
-kin · suffix2
- Proto-West Germanic · derived from*-ikīn
- Middle Dutch · derived from-kin
- Old English · inherited from-ca
- Middle English · inherited from-kyn
- English today-kin
From Middle English -kyn, (also as -ke, -k), perhaps from Old English -ca, but probably instead from Middle Dutch -kin, apparently representing Proto-West Germanic *-ikīn, *-ukīn, a double diminutive, from *-ik, *-uk (> Old English -oc) + *-īn (compare Old English -en). Cognate with Dutch -ken, Low German -ken, German -chen, Old English -ċen. More at -ock, -en.
Etymology from Wiktionary, CC BY-SA 4.0.