English
heart balm
From heart + balm.
Proto-Indo-European *ḱerd-
…
Proto-Germanic *hertô
Proto-West Germanic *hertā
Old English heorte
Middle English harte
English heart
Ancient Greek βάλσαμον ‘Arabian balsam tree’
Latin balsamum ‘balsam’
Old French basme
Middle French baume
Middle English bawme ‘the aromatic resin of trees of the genus…’
English balm
Today it means
noun Something that soothes a person's fears or emotions.
Language periods are conventional ranges, not dates for this word.
Etymograph / heart balm