Etymograph
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Indo-European
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Old Norse
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Rules
> on-article-vowel-deletion
V
>
∅
/
V
_
if sound is
morpheme-initial
Referencing rules
on-def-nom-sg
on-def-nom-pl
on-def-acc-sg
on-def-acc-pl
on-def-dat-sg
on-def-gen-sg
on-def-gen-pl