Norwegian Bokmål

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Etymology

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From Ancient Greek ἀρχαῖος (arkhaîos) +‎ -isk.

Adjective

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arkeisk (indefinite singular arkeisk, definite singular and plural arkeiske)

  1. (geology) Archaean

References

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Norwegian Nynorsk

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Etymology

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From Ancient Greek ἀρχαῖος (arkhaîos) +‎ -isk.

Adjective

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arkeisk (indefinite singular arkeisk, definite singular and plural arkeiske)

  1. (geology) Archaean