'elegantly-matched' is a modern English compound formed from 'elegantly' (the adverb of 'elegant') and 'matched' (the past participle of 'match'). 'Elegant' originates from French 'élégant', ultimately from Latin 'ēlegans' (present participle of 'ēlegere'), where 'ē-'/ex- meant 'out' and 'legere' meant 'to choose'. 'Match' as a verb/past participle comes from Germanic and Old Norse roots meaning 'mate' or 'partner'.

'elegantly' developed from French and Latin roots ('élégant' ← Latin 'ēlegans'), while 'match' evolved from Old English/Old Norse words for 'mate'/'partner' into Middle English forms and then modern English 'match'; the two elements were combined in modern English usage to form the descriptive compound 'elegantly-matched'.

Individually, 'elegant' originally carried the sense of 'chosen well' or 'tasteful' from Latin, and 'match' originally meant 'mate' or 'partner'; together in modern usage the compound has the straightforward current meaning of 'paired or coordinated in a refined way.'