Where does “tírio” come from?

tírio (Portuguese) comes from Portuguese tiro, from Latin Tyrus, from Ancient Greek τυρός, from Proto-Hellenic tūrós, from Proto-Indo-European tuh₂-ró-s, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.

tírio (Portuguese): Tyrian

Definitions

Tyrian

Ancestry of “tírio”, step by step

Step	Language	Word	Meaning
1	Portuguese	tiro	the act of shooting; a fired shot; shooting...
2	Latin	Tyrus	Tyre
3	Ancient Greek	τυρός	cheese
4	Proto-Hellenic	tūrós	cheese
5	Proto-Indo-European	tuh₂-ró-s	—
6	Proto-Indo-European	tewh₂-	to swell; to crowd; to be strong

Every word from Proto-Indo-European tewh₂- →Every word from Proto-Indo-European tuh₂-ró-s →Every word from Proto-Hellenic tūrós →