Where does “Lniak” come from?

Lniak (Polish) comes from Polish Leń, from Proto-Slavic lьnъ, from Proto-Balto-Slavic lína, from Proto-Indo-European līnom — flax.

Ancestry of “Lniak”, step by step

StepLanguageWordMeaning
1PolishLeń—
2Proto-Slaviclьnъflax
3Proto-Balto-Slaviclína—
4Proto-Indo-Europeanlīnomflax
Every word from Proto-Indo-European līnom →Every word from Proto-Balto-Slavic lína →Every word from Proto-Slavic lьnъ →