purposeful

the word 'purposeful' is a modern english formation, built upon the noun 'purpose'. the noun 'purpose' itself has a rich history, entering middle english from anglo-norman french 'purpos', which derived from old french 'porposer', a variant of 'proposer' meaning 'to put forth'. this old french term originates from latin 'prōpōnere', composed of 'prō-' (forward) and 'pōnere' (to place), thus literally 'to place forward' or 'to set forth an intention'. the adjective-forming suffix '-ful', of old english origin, attaches to this noun, transforming the concept of 'an intention set forth' into the quality of being 'full of intention' or 'determined'. therefore, the literal morphemic sense of 'full of a set-forth intention' evolved seamlessly into the modern abstract meanings of acting with resolve and deliberate aim.

Structure: purpose (noun) + ful (adjective-forming suffix) purpose (from anglo-norman french 'purpos', from old french 'porpos', from latin 'propositum' meaning 'something set forth'); ful (from old english '-ful', a suffix meaning 'full of', used to form adjectives from nouns).