Where does “piorar” come from?

piorar (Portuguese) comes from Late Latin peiorare, from Latin peiorem, from Latin peior, from Latin malus, from Ancient Greek μηλέα, from Ancient Greek μῆλον, from Proto-Indo-European (s)meh₁l- — small animal”; small animal.

piorar (Portuguese): to worsen

Definitions

to worsen

Ancestry of “piorar”, step by step

Step	Language	Word	Meaning
1	Late Latin	peiorare	present active infinitive of peiōrō;...
2	Latin	peiorem	first-person singular present active subjunctive...
3	Latin	peior	worse
4	Latin	malus	unpleasant, distressing, painful, nasty, bad;...
5	Ancient Greek	μηλέα	apple tree
6	Ancient Greek	μῆλον	apple; any fruit from a tree; a woman's breast
7	Proto-Indo-European	(s)meh₁l-	small animal”; small animal

Every word from Proto-Indo-European (s)meh₁l- →Every word from Ancient Greek μῆλον →Every word from Ancient Greek μηλέα →