Icelandic edit

Etymology edit

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

Pronunciation edit

Verb edit

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

  1. (mathematics, childish) to multiply

Usage notes edit

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