The Collaborative International Dictionary of English v.0.48:

Embrocate \Em"bro*cate\, v. t. [imp. & p. p. Embrocated; p.
   pr. & vb. n. Embrocating.] [NL. embrocatus, p. p. of
   embrocare; cf. Gr. ? lotion, fomentation, fr. ? to foment; ?
   in + ? to wet.] (Med.)
   To moisten and rub (a diseased part) with a liquid substance,
   as with spirit, oil, etc., by means of a cloth or sponge.
   [1913 Webster]

WordNet (r) 3.0 (2006):

embrocate
    v 1: administer an oil or ointment to ; often in a religious
         ceremony of blessing [syn: anoint, inunct, oil,
         anele, embrocate]

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "embrocate":
   anoint, beeswax, daub, dope, dose, dress, drug, glycerolate,
   grease, grease the wheels, lard, lubricate, medicate, oil, pomade,
   salve, slick, slick on, smear, smooth the way, soap the ways,
   unguent, wax