Added 9 October 2026 kinsperson noun Categories: PeopleObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about kinsperson at Wordnik → Where our words come from → A person having kinship with another or others. he's kin Origin From kin + -s- + person. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: kinfamilyallykindredaffinitybrotherkinhoodcousinkinsmanshipbrethren Back to today's word