Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
damp [dæmp] adj (building, wall) сыро́й#; (cloth) вла́жный#
n сы́рость f
vt (also: dampen)(cloth etc) сма́чивать (смочи́ть*perf) (enthusiasm etc) охлажда́ть (охлади́ть*perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.