Bokmål: filleonkelm(male cousin of parent), filletantem or f(female cousin of parent)
Russian: двоюродный дядя(ru)m(dvojurodnyj djadja)(male first cousin of one's father), двоюродная тётяf(dvojurodnaja tjótja)(female first cousin of one's father), двоюродный дядя(ru)m(dvojurodnyj djadja)(male first cousin of one's mother), двоюродная тётяf(dvojurodnaja tjótja)(female first cousin of one's mother)