From Longman Dictionary of Contemporary Englishmoistenmoist‧en /ˈmɔɪsən/ verb [transitive] WETto make something slightly wet Moisten the clay if it seems too dry. She moistened her lips (=made her lips wet with her tongue).→ See Verb table
Examples from the Corpus
moisten• I pulled it off gently, so as not to wake him, moistened a handkerchief with cologne and wiped his forehead.• Mound the moistened couscous on a serving platter and form a large well in the center.• She moistened her lips with the tip of her tongue and his sudden tension told her she was right.• Tom paused and moistened his lips.• Tom picked up a brush and moistened it in the turpentine cup.• When the clay becomes dry, moisten it lightly before you continue to shape it.• She put the end in her mouth and moistened it to a point.• I would calm my rage, moisten my dry lips, force his return if only by the strength of my desire.• Add just enough water to moisten the cake mixture without making it too watery.• You may have to add an additional tablespoon of water to moisten the dough.• If you find your throat is dry and you need some water just take a few sips to moisten your mouth.moistened ... lips• Swallowing, she moistened her lips.• She moistened her lips, feeling the raised and tender flesh where her teeth had bitten through.• She moistened her lips with the tip of her tongue and his sudden tension told her she was right. 