the word 'wrathful' is a native english formation, built from two old english components. the root 'wrath' originates from the old english 'wræððu', meaning 'anger, fury', which itself is derived from the proto-germanic 'wraiþō', conveying a sense of being twisted or angry. the suffix '-ful' comes from the old english '-full', an adjectival suffix literally meaning 'full of'. therefore, the literal construction 'full of wrath' has remained semantically transparent, directly describing a state of intense, often righteous, anger. this straightforward compounding illustrates how english can create descriptive adjectives by attaching native suffixes to existing nouns.

Structure: wrath (anger) + ful (full of) wrath (old english, meaning 'anger, fury') + ful (old english, an adjective-forming suffix meaning 'full of, characterized by')