Middle Irish

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Etymology

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From Proto-Celtic *sextametos. By surface analysis, secht +‎ -mad.

Adjective

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Middle Irish ordinal numbers
 <  6th 7th 8th  > 
    Cardinal : secht
    Ordinal : sechtmad

sechtmad

  1. seventh

Descendants

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  • Irish: seachtú

Mutation

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Middle Irish mutation
Radical Lenition Nasalization
sechtmad ṡechtmad 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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