nemesister
n.β Β«All the skaters share an unmistakable bond. “Weβre all friends, and weβre all in this together, but Iβm gonna kick your a- Sunday night,” Sister Mary Jane explained. “We have a term for the relationship: nemesisters.”Β» ββRollergirls” by Jonathan Storm Philadelphia Inquirer (Pa.) Jan. 1, 2006. (source: Double-Tongued Dictionary)