婚くながいFreq.FrequencyTop 5,000Meanings1nounsexual intercoursearchaicArchaic noun; not used in modern Japanese. The reading くながい is obsolete and appears only in historical or classical contexts.古こ語ごでは「婚くながい」を「くながい」と読よんで性せい交こうを意い味みした。In old Japanese, 婚 was read as くながい and meant sexual intercourse.