Icelandic

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Etymology

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From sinnum (dative plural of sinn (time)), commonly occurring in multiplication, e.g. fjórum sinnum þrír (four times three).

Pronunciation

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Verb

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sinnuma (weak verb, third-person singular past indicative sinnumaði, supine sinnumað)

  1. (mathematics, childish) to multiply

Usage notes

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This word is not generally accepted, and is mostly used by children. The preferred term is margfalda.