Icelandic

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Etymology

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From þágufall +‎ sýki.

Noun

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þágufallssýki f (genitive singular þágufallssýki, no plural)

  1. (grammar) The act of erroneously using the dative case in place of another grammatical case, usually the accusative case.

Declension

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    Declension of þágufallssýki
f-w2 singular
indefinite definite
nominative þágufallssýki þágufallssýkin
accusative þágufallssýki þágufallssýkina
dative þágufallssýki þágufallssýkinni
genitive þágufallssýki þágufallssýkinnar