411 REFERENCE · Wiktionary
-ces
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Derived from the pluralization pattern of Latin third declension nouns.
Pronunciation
en /siːz/
Suffix
en inflectional suffixes
Used to form the irregular plural form of Latin-derived nouns ending in -x:
⟨-ax⟩ thorax → thoraces
⟨-ex⟩ scolex → scoleces, index → indices
⟨-ix⟩ helix → helices
⟨-ox⟩ equinox → equinoces
⟨-ux⟩ crux → cruces
See also
:Category:English plurals in -ces with singular in -x