Resembling, containing, or having the qualities of balsam; soothing and fragrant.
From balsam + -y (having the quality of). This informal adjective developed to describe something with balsam-like characteristics.
The shift from 'balsamum' (formal) to 'balsamy' (casual) shows how English absorbed foreign luxury words then casually transformed them—the same pattern happened with 'wine' from 'vinum.'
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