Where does “Utebo” come from?

Utebo (Spanish) comes from Aragonese Utevo, from Latin octāvus, from Proto-Italic oktāwos, from Proto-Indo-European oḱtṓwos, from Proto-Indo-European oḱtṓw, from Proto-Indo-European aḱ- — sharp, pointed; sharp, pointed, edgy; sharp,...

Ancestry of “Utebo”, step by step

Step	Language	Word	Meaning
1	Aragonese	Utevo	—
2	Latin	octāvus	eighth; the ordinal number between septimus and nōnus
3	Proto-Italic	oktāwos	eighth
4	Proto-Indo-European	oḱtṓwos	eighth
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-Indo-European oḱtṓwos →