Where does “creierișor” come from?

creierișor (Romanian) comes from Romanian creier, from Latin cerebrum, from Proto-Italic kerazrom, from Proto-Indo-European ḱerh₂-s-ro, from Proto-Indo-European ḱerh₂- — head, top; horn.

Ancestry of “creierișor”, step by step

StepLanguageWordMeaning
1Romaniancreierbrain
2Latincerebrumbrain; skull
3Proto-Italickerazrombrain
4Proto-Indo-Europeanḱerh₂-s-ro
5Proto-Indo-Europeanḱerh₂-head, top; horn
Every word from Proto-Indo-European ḱerh₂-Every word from Proto-Indo-European ḱerh₂-s-roEvery word from Proto-Italic kerazrom