Old Irish

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Etymology 1

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From to- +‎ ro- and probably ·bí (to exist).

Verb

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do·rorban (prototonic ·torban, verbal noun torbae)

  1. to benefit, help
Inflection
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Etymology 2

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From dí- +‎ ro- and probably ·bí (to exist).

Verb

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do·rorban (prototonic ·derban, verbal noun derbaid)

  1. to hinder
Inflection
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Mutation

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Old Irish mutation
Radical Lenition Nasalization
do·rorban
also do·rrorban
do·rorban
pronounced with /-r(ʲ)-/
unchanged
Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.

Further reading

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