cousinageEtymologyFrom Middle English cosynage, from Old French cosinage. Compare cosinage, cozenage. By surface analysis, cousin + -age.cousinage means relationship; kinship. Lexicurio rates it Sui generis — a strength score of 89 out of 100.nounrelationship; kinship“Born in Riga in 1909 into a vast cousinage that included the Lubavitcher rebbes, Isaiah Mendelevich Berlin was taken to Petrograd as a small boy, and then to London in 1921 when the Bolsheviks allowed his prosperous (and fortunate) parents to leave.”