Where does “mosquitinho” come from?

mosquitinho (Portuguese) comes from Portuguese mosquito, from Spanish Mosquito, from Old Spanish mosquito, from Old Spanish mosca, from Latin musca, from Ancient Greek μυῖα, from Proto-Indo-European mūs- — fly, stinging fly, gnat; moist, damp; swamp,...

Ancestry of “mosquitinho”, step by step

Step	Language	Word	Meaning
1	Portuguese	mosquito	mosquito
2	Spanish	Mosquito	mosquito
3	Old Spanish	mosquito	Diminutive of mosca; a mosquito
4	Old Spanish	mosca	fly
5	Latin	musca	a fly; an inquisitive or prying people
6	Ancient Greek	μυῖα	a fly
7	Proto-Indo-European	mūs-	fly, stinging fly, gnat; moist, damp; swamp,...

Every word from Proto-Indo-European mūs- →Every word from Ancient Greek μυῖα →Every word from Latin musca →