Simple past tense and past participle of moisten.(verb)
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Use "moistened" in a sentence
"Aiguillon, was rather what you call a moistened chicken."
"It is true, a man, a poor black man, and a very sad man he was too, put the little seeds into the ground; but they would never have grown if the sun hadn't shone, the soft earth nourished, and the rain moistened them."
"But she be after 'em all along, so well as the roomatiz in her back do let her, with an old shovel and a bit of stuff to keep the frost out, one time, and the old shovel and a bit of stuff to keep 'em moistened from the drought, another time; cuddling of 'em like Christians."