moistens
Moistens is the third-person singular present tense of the verb moisten. It means to cause something to become slightly wet or damp.
The action is transitive: a subject moistens an object by applying a liquid or exposing it to
Grammatical notes: the base form is moisten; the present tense for third-person singular is moistens; the past
Etymology: moisten derives from the adjective moist, with the English suffix -en added to form a verb
See also: dampen, moisturize, hydration, humidity, moisture.