Where does “Optășani” come from?

Optășani (Romanian) comes from Romanian Optași, from Romanian opt, from Latin octō, from Proto-Italic oktō, from Proto-Indo-European oḱtṓw, from Proto-Indo-European aḱ- — sharp, pointed; sharp, pointed, edgy; sharp,...

Ancestry of “Optășani”, step by step

Step	Language	Word	Meaning
1	Romanian	Optași	—
2	Romanian	opt	eight
3	Latin	octō	eight; 8
4	Proto-Italic	oktō	eight
5	Proto-Indo-European	oḱtṓw	eight
6	Proto-Indo-European	aḱ-	sharp, pointed; sharp, pointed, edgy; sharp,...

Every word from Proto-Indo-European aḱ- →Every word from Proto-Indo-European oḱtṓw →Every word from Proto-Italic oktō →