balm / bä(l)m/ • n. a fragrant ointment or preparation used to heal or soothe the skin. ∎  used in names of other aromatic herbs of the mint family, e.g., bee balm. ∎ fig. something that has a comforting, soothing, or restorative effect.

balm aromatic resin; aromatic oil or ointment XIII. ME. ba(s)me, baume — OF. basme, bau(s)me :- L. balsamum BALSAM.
Hence balmy XV (see -Y1); also in fig. sense, var. of BARMY.

balm Resin from a balsam plant and the name of various aromatic plants, particularly those of the genera Melissa and Melittis, both family Lamiaceae/Labiatae. Also, an old name for any soothing ointment.

balm A herb (Melissa officinalis) with hairy leaves and a lemon scent, therefore often known as lemon balm. Used for its flavour in fruit salads, sweet or savoury sauces, etc., as well as for preparation of herb teas. Claimed to have calming medicinal properties; it is rich in tannins.