Lewis & Short

2. ĕlăte, ēs, f., = ἐλάτη,

  1. I. a sort of firtree, Lat. abies, Plin. 12, 28, 62, § 134; 23, 5, 53, § 99.
  2. II. The envelope or leaf of the palm-bud, Vulg. Cant. 5, 11.