Simple past tense and past participle of neaten.(verb)
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Use "neatened" in a sentence
"You could do this at home if you were properly hardcore, but the alternative is eye shadow or pigment (Golden Olive pigment, £15, maccosmetics. co.uk) dabbed on confidently and neatened with a cotton bud."
"Instead of having the father come home and have to hunt for everyone, they can all be expecting him, having gotten the house cleaned up, their clothing neatened, hair combed, and greeting him at the door."
"Also tackled my scrap basket - didn't empty it, just neatened it a bit so it will hold more."