Noah Webster's Dictionary (n.) Plural of Kinswoman.

Multi-Version Concordance Kinswomen (1 Occurrence) Leviticus 18:17 "'You shall not uncover the nakedness of a woman and her daughter. You shall not take her son's daughter, or her daughter's daughter, to uncover her nakedness; they are near kinswomen: it is wickedness. (WEB KJV JPS ASV WBS RSV)