Sprinkle

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late Middle English: perhaps from Middle Dutch sprenkelen .

wiktionary

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From Middle English sprynklen, sprenkelen, equivalent to sprink +‎ -le(frequentative suffix). Cognate with Dutch sprenkelen(“to sprinkle”), German Low German sprenkeln(“to sprinkle; dapple”), German sprenkeln(“to sprinkle”).

etymonline

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sprinkle (v.)

late 14c. (implied in sprinkled), frequentative of sprenge (see spring (v.)) or via Middle Dutch, Middle Low German sprenkel "spot, speck," from PIE root *(s)preg- "to jerk, scatter" (source also of Latin spargere "to scatter, sprinkle"). The meaning "rain lightly" is first recorded 1778.