'cinnamon-scented' is a modern English compound formed from 'cinnamon' + 'scented'. 'Cinnamon' originates from Greek 'kinnámōmon' via Latin 'cinnamomum' and Old French, and 'scented' comes from the past participle adjective of 'scent', ultimately from Latin 'sentire' (to feel/smell).

'cinnamon' comes from Greek 'kinnámōmon', passed into Latin as 'cinnamomum' and Old French, and entered Middle English as 'cinnamon'; 'scented' developed from Middle English/Old French forms of 'scent' (from Latin 'sentire') with the participial suffix '-ed', and the compound 'cinnamon-scented' arose in modern English by combining the noun and the participial adjective.

Individually, 'cinnamon' originally referred to the spice and tree, and 'scented' meant 'having a smell'; combined as 'cinnamon-scented' the phrase specifically describes something that smells like cinnamon — the modern, literal meaning.