lawful

The word 'lawful' is a native English formation, built from the Old English noun 'lagu', meaning something laid down or fixed as a rule, and the adjectival suffix '-ful'. The root 'lagu' itself is a borrowing from Old Norse 'lag', which carried the sense of 'layer, share, partnership, something laid down', and is related to the verb 'to lay'. This etymological connection reveals the conceptual foundation of law as rules that are 'laid down' by an authority for a community. The suffix '-ful', meaning 'full of', transforms this noun into an adjective describing something that is in accordance with or full of these established rules. Thus, the modern abstract meaning of 'conforming to the law' directly and logically stems from its literal morphemic components: 'characterized by the rules that are laid down'.

Structure: law (rule) + ful (full of, characterized by) law: From Old English 'lagu' (law, ordinance, rule), of Old Norse origin, related to 'lay' (something laid down or fixed). Its functional role is the core semantic root denoting a system of rules. ful: A suffix from Old English '-ful', meaning 'full of', 'characterized by', or 'having the qualities of'. Its functional role is to form adjectives from nouns.