Where does “burrinho” come from?

burrinho (Portuguese) comes from Portuguese burro, from Portuguese burrico, from Latin burricus, from Latin Burrus, from Ancient Greek πυρρός, from Ancient Greek πῦρ, from Proto-Indo-European péh₂wr̥ — bonfire; spelt.

Ancestry of “burrinho”, step by step

Step	Language	Word	Meaning
1	Portuguese	burro	donkey; idiot, dunce; stupid, dumb, idiotic
2	Portuguese	burrico	burro
3	Latin	burricus	small horse
4	Latin	Burrus	flushed, red
5	Ancient Greek	πυρρός	flame-coloured, yellowish-red; red-haired,...
6	Ancient Greek	πῦρ	a fire; lightning; a fever
7	Proto-Indo-European	péh₂wr̥	bonfire; spelt

Every word from Proto-Indo-European péh₂wr̥ →Every word from Ancient Greek πῦρ →Every word from Ancient Greek πυρρός →