lustful

the word 'lustful' is a native english formation, built from the old english noun 'lust', which denoted pleasure, desire, or appetite. this old english term is itself derived from proto-germanic lustuz, conveying pleasure and desire. the suffix '-ful', from old english '-full', is an adjectival suffix meaning 'full of' or 'characterized by'. therefore, the literal construction 'full of lust' originally had a broader sense of being full of desire or eagerness. over time, as the noun 'lust' semantically narrowed to focus intensely on sexual desire, the adjective 'lustful' followed suit, now primarily describing someone characterized by or driven by strong sexual appetite.

Structure: lust (desire) + ful (full of) lust (old english, meaning desire, pleasure, appetite, functioning as the core noun root); ful (old english, an adjectival suffix meaning 'full of' or 'characterized by', functioning as a derivational suffix)