Ninnyhammer

1608, A Yorkshire Tragedy, dubiously claimed to be by William Shakespeare Why, the more fool she; aye, the more ninny hammer she.

Source: wiktionary

"You silly, awkward, ill-bred country sow," quoth one, "have you no more manners than to rail at Hocus that has saved that clod-pated numskulled ninny-hammer of yours from ruin, and all his family?

Source: wiktionary

'Silly noodle!—foolish simpleton!—bewildered ninnyhammer! He had brains in his head once.'

Source: wiktionary

'Well, if I don't deserve to be hung on the end of one as a warning to numbskulls! You're nowt but a ninnyhammer, Sam Gamgee: that's what the Gaffer said to me often enough, it being a word of his. Rope!'

Source: wiktionary