Where does “смъртоносен” come from?

смъртоносен (Bulgarian) comes from Bulgarian смърт, from Old Church Slavonic съмрьть, from Proto-Slavic sъmьrtь, from Proto-Balto-Slavic su-mirtis, from Proto-Balto-Slavic mirtis, from Proto-Indo-European mértis, from Proto-Indo-European mer- — to die; to disappear; sea, lake, wetland.

смъртоносен (Bulgarian): lethiferous leading to certain death; of a wound, weapon strike, attack, etc

Definitions

  1. lethiferous leading to certain death; of a wound, weapon strike, attack, etc

Ancestry of “смъртоносен”, step by step

смъртоносен traces back through two separate lines of ancestry.

via Bulgarian смърт

StepLanguageWordMeaning
1Bulgarianсмъртdeath; Death, the Grim Reaper; loathing
2Old Church Slavonicсъмрьтьdeath
3Proto-Slavicsъmьrtьdeath
4Proto-Balto-Slavicsu-mirtisnatural death
5Proto-Balto-Slavicmirtisdeath
6Proto-Indo-Europeanmértisdeath
7Proto-Indo-Europeanmer-to die; to disappear; sea, lake, wetland

via Bulgarian но́сен

StepLanguageWordMeaning
1Bulgarianно́сенnose; nasal
2Bulgarianно́сяto carry
3Old Church Slavonicноситиto carry
4Proto-Slavicnositito carry, to bring
5Proto-Slavic-itiDeverbal, iterative; Deverbal, causative;...
6Proto-Indo-European-éyetiForms causative imperfective verbs from roots;...
7Proto-Indo-European-yetiCreates transitive imperfective verbs from roots
Every word from Proto-Indo-European mer-Every word from Proto-Indo-European mértisEvery word from Proto-Balto-Slavic mirtis