deunawfed

Welsh

**Welsh numbers ^(edit)**
^{[a], [b], [c], [d], [e], [f]} ← 17	18	19 → ^{[a], [b]}
Cardinal (feminine / vigesimal): tair ar bymtheg, ugain namyn dwy Cardinal (decimal): un deg wyth Cardinal (vigesimal): deunaw Ordinal (masculine / vigesimal): trydydd ar bymtheg Ordinal: deunawfed Ordinal abbreviation: 18fed
Welsh Wikipedia article on 18

From deunaw (“eighteen”) +‎ -fed (“-th”).

deunawfed (feminine singular deunawfed, plural deunawfed, not comparable)

(ordinal number) eighteenth
- 1588-1620, “1 Croncicl 24:15”, in William Morgan, transl., edited by William Parry and John Davies, Mallwyd, Y Bibl Cyssegr-Lan, sef yr Hen Destament a’r Newydd‎^[1], page 434; republished London, 1804:
  Y ddeufed ar bymtheg i Hezir, y deunawfed i Aphses,
  the seventeenth to Hezir, the eighteenth to Aphses

Mutated forms of *deunawfed*
radical	soft	nasal	aspirate
deunawfed	ddeunawfed	neunawfed	unchanged

Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.