Where does “речевой” come from?

речевой (Russian) comes from Russian речь, from Proto-Slavic rěčь, from Proto-Slavic rěk-, from Proto-Slavic -ь, from Proto-Indo-European -is — Forms nouns from verbs.

речевой (Russian): speech; vocal; voice

Definitions

  1. speech; vocal; voice

Ancestry of “речевой”, step by step

StepLanguageWordMeaning
1Russianречьspeech, language; discourse, talk, conversation;...
2Proto-Slavicrěčьspeech
3Proto-Slavicrěk-—
4Proto-Slavic-ьForms nouns; From adjectives; From participles
5Proto-Indo-European-isForms nouns from verbs
Every word from Proto-Indo-European -is →Every word from Proto-Slavic -ь →Every word from Proto-Slavic rěk- →