Where does “cyfrwyster” come from?

cyfrwyster (Welsh) comes from Welsh -der, from Proto-Indo-European -teros — Contrastive or oppositional adjectival suffix.

cyfrwyster (Welsh): craftiness, cunning, wiliness

Definitions

  1. craftiness, cunning, wiliness

Ancestry of “cyfrwyster”, step by step

StepLanguageWordMeaning
1Welsh-der-ness, -ment
2Proto-Indo-European-terosContrastive or oppositional adjectival suffix
Every word from Proto-Indo-European -teros →Every word from Welsh -der →