The Collaborative International Dictionary of English v.0.48:

Borage \Bor"age\, n. [OE. borage (cf. F. bourrache, It.
   borraggine, borrace, LL. borago, borrago, LGr. ?), fr. LL.
   borra, F. bourre, hair of beasts, flock; so called from its
   hairy leaves.] (Bot.)
   A mucilaginous plant of the genus Borago (B. officinalis),
   which is used, esp. in France, as a demulcent and
   diaphoretic.
   [1913 Webster]

WordNet (r) 3.0 (2006):

borage
    n 1: hairy blue-flowered European annual herb long used in
         herbal medicine and eaten raw as salad greens or cooked
         like spinach [syn: borage, tailwort, Borago
         officinalis]
    2: an herb whose leaves are used to flavor sauces and punches;
       young leaves can be eaten in salads or cooked