Where does “cryptonymy” come from?

cryptonymy (English) comes from English -onymy, from Latin -ia, from Latin -ius, from Proto-Italic -jōs, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

cryptonymy (English): The use of code names or cryptonyms

Definitions

  1. The use of code names or cryptonyms

Ancestry of “cryptonymy”, step by step

StepLanguageWordMeaning
1English-onymyUsed to form nouns describing the study,...
2Latin-iaUsed to form a feminine abstract noun, usually...
3Latin-iusforming adjectives from nouns; nominative neuter...
4Proto-Italic-jōsForms comparative adjectives
5Proto-Indo-European-yósCreates adjectives from noun or verb stems
Every word from Proto-Indo-European -yós