To shudder, tremble, or vibrate; to move in a shaky or uncertain manner.
Origin uncertain, possibly from Scots or Northern English dialect. May be related to onomatopoeia imitating vibrating sounds, with possible connections to Middle English 'dodder' or Germanic roots.
Dudder is a beautifully specific word for that feeling when your whole body shakes—like when you come inside from the cold or get a sudden fright—and it's mostly lived on in Scottish English.
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