Where does “mau” come from?

mau (Fala) comes from Old Portuguese mão, from Latin malus, from Ancient Greek μηλέα, from Ancient Greek μῆλον, from Proto-Indo-European (s)meh₁l- — small animal”; small animal.

mau (Fala): bad

Definitions

Ancestry of “mau”, step by step

Step	Language	Word	Meaning
1	Old Portuguese	mão	hand
2	Latin	malus	unpleasant, distressing, painful, nasty, bad;...
3	Ancient Greek	μηλέα	apple tree
4	Ancient Greek	μῆλον	apple; any fruit from a tree; a woman's breast
5	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 →