A small amounts of liquid that drips or drizzles slowly; a light, gentle flow or splash of liquid.
Possibly from 'drizzle' or 'trickle' combined, or a variant of dialect words meaning to dribble. The origin is uncertain but likely reflects onomatopoeia—the word sounds like the action it describes.
Words like druttle show that English speakers are constantly experimenting—this might be a very old dialect word that was never written down much, so its history is fuzzy, but we can still hear that it mimics the sound of dripping.
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