Icelandic

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Etymology

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From steinn (stone) +‎ efni (matter).

Pronunciation

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Noun

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steinefni n (genitive singular steinefnis, nominative plural steinefni)

  1. mineral

Declension

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    Declension of steinefni
n-s singular plural
indefinite definite indefinite definite
nominative steinefni steinefnið steinefni steinefnin
accusative steinefni steinefnið steinefni steinefnin
dative steinefni steinefninu steinefnum steinefnunum
genitive steinefnis steinefnisins steinefna steinefnanna