Where does “единственно” come from?

единственно (Russian) comes from Russian еди́нственный, from Russian еди́нство, from Russian -ство́, from Proto-Slavic -ьstvo, from Proto-Balto-Slavic -istwas.

единственно (Russian): solely, only, just; short neuter singular of...

Definitions

  1. solely, only, just; short neuter singular of...

Ancestry of “единственно”, step by step

StepLanguageWordMeaning
1Russianеди́нственныйsole, only, unique
2Russianеди́нствоunity, unanimity, oneness
3Russian-ство́suffix appended to nouns and adjectives to create a neuter noun, usually an abstract noun denoting a relation, social status, scientific discipline, quality or state: -hood, -ness, -ship, -ity, -y
4Proto-Slavic-ьstvoDeadjectival, forming nouns denoting a condition...
5Proto-Balto-Slavic-istwas
Every word from Proto-Balto-Slavic -istwasEvery word from Russian -ство́Every word from Proto-Slavic -ьstvo