This noun refers to the act or emission of male copulation, always appearing with the verb 'give' (natan) in contexts of forbidden sexual relations. Leviticus 18:20 and 23 prohibit giving one's 'lying' (semen emission) to a neighbor's wife or to an animal. Leviticus 20:15 repeats the animal prohibition. Numbers 5:20 uses it in the suspected adultery ordeal—if another man has 'given his lying' with the woman. The multilingual glosses show literal renderings (Spanish acostamiento 'lying down', French couché 'lying/bed', German liegend 'lying'). This is technical priestly vocabulary for male sexual emission, used specifically in laws maintaining sexual boundaries and ritual purity. The euphemistic precision reflects Torah's simultaneous frankness and delicacy about sexual matters.