1) Moisture 
moisture
• (n.) A moistening.
1. Therapeutic application of moisture. ... 2. Serous infiltration of the tissues. ... 3. Soaking of a crude drug in water preparatory to the making of an extract. ... Origin: L. Humecto, pp. -mectus, to moisten, fr. Humeo, to be damp ... (05 Mar 2000) ... 
Hu`mec·ta'tion noun [ Latin humectatio : confer French humectation .] A moistening. [ Obsolete] Bacon. 
Type: Term Pronunciation: hyū′mek-tā′shŭn Definitions: 1. Therapeutic application of moisture. 2. Serous infiltration of the tissues. 3. Soaking of a crude drug in water preparatory to the making of an extract.