Where does “наизусть” come from?

наизусть (Russian) comes from Russian из, from Proto-Slavic jьz, from Proto-Balto-Slavic iź, from Proto-Indo-European h₁eǵʰs — out.

наизусть (Russian): by heart, by rote

Definitions

  1. by heart, by rote

Ancestry of “наизусть”, step by step

наизусть traces back through 3 separate lines of ancestry.

via Russian из

StepLanguageWordMeaning
1Russianизfrom; out of; of, through
2Proto-Slavicjьzfrom, out of
3Proto-Balto-Slaviciź—
4Proto-Indo-Europeanh₁eǵʰsout

via Russian уста́

StepLanguageWordMeaning
1Russianуста́mouth, lips
2Proto-Slavicustàlips, mouth
3Proto-Indo-Europeanh₃éh₁osmouth

via Russian на́

StepLanguageWordMeaning
1Russianна́here you go! (encouraging someone to accept something, used when giving or providing something, i.e., "take it!", "here you goǃ")
2Proto-Slavicnaon; concerning; onto
3Proto-Indo-Europeanh₂en-on, onto
Every word from Proto-Indo-European h₁eǵʰs →Every word from Proto-Balto-Slavic iź →Every word from Proto-Slavic jьz →