Where does “cero” come from?

cero (Catalan) comes from Latin cervus, from Latin -a, from Proto-Italic -ā, from Proto-Indo-European -éh₂.

Ancestry of “cero”, step by step

StepLanguageWordMeaning
1Latincervusdeer, stag; forked stakes; cheval de frise
2Latin-asuffixed to the roots of verbs, forms agent...
3Proto-Italic-āForms masculine agent nouns from prefixed or compounded bases
4Proto-Indo-European-éh₂—
Every word from Proto-Indo-European -éh₂ →Every word from Latin -a →Every word from Latin cervus →