deac

Old Irish

Alternative forms

Etymology

From Proto-Celtic *dekam-kʷe (literally and ten), with loss of the first k by dissimilation.[1]

Numeral

deäc

  1. -teen

Usage notes

When modifying a noun to indicate an amount between 11 and 19, deac follows the noun while its accompanying numeral simultaneously precedes the noun.

  • cóic bliadni deac15 years (Ml. 16c10) (literally, “five years -teen”)

Descendants

  • Middle Irish: déc
    • Irish: déag
    • Scottish Gaelic: deug
    • Manx: jeig

Mutation

Old Irish mutation
RadicalLenitionNasalization
deäc deäc
pronounced with /ð(ʲ)-/
ndeäc
Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.

References

  1. Schrijver, Peter (1993) “Varia IV. OIr. dëec, dëac”, in Ériu, volume 44, pages 181–84

Further reading

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