even-tempered

The compound adjective 'even-tempered' is built upon the core concept of 'temper', which originates from the Latin verb temperare, meaning to mix or bring something to a proper proportion. This evolved through Old French into English, where 'temper' came to signify one's mental disposition or character, likening it to a well-mixed, balanced state. The modifier 'even', from Old English efen, meaning level or uniform, is prefixed to specify a temper that is consistently calm and steady, not subject to erratic shifts. The suffix '-ed' then converts this noun phrase into an adjective, completing the modern sense of possessing a uniformly balanced and placid disposition.

Structure: even (level) + temper (character) + ed (adjective suffix) - even: From Old English efen (level, equal). Functional role: Modifier describing the nature of the temper. - temper: From Latin temperare (to mix, regulate). Functional role: Core noun root meaning 'character or disposition'. - ed: From Old English -ede (adjectival suffix). Functional role: Suffix forming adjectives meaning 'having the quality of'.