Where does “Buculeanu” come from?

Buculeanu (Romanian) comes from Sicilian bucu, from Spanish buque, from French bouquet, from Old French bochet, from Old French bois, from Frankish busk, from Proto-Germanic buskaz, from Proto-Indo-European bʰuH- — to become, grow, appear.

Ancestry of “Buculeanu”, step by step

Step	Language	Word	Meaning
1	Sicilian	bucu	hole
2	Spanish	buque	ship, vessel
3	French	bouquet	bouquet, bunch; a set or selection of something;...
4	Old French	bochet	—
5	Old French	bois	woodland; woods
6	Frankish	busk	bush; bush, thicket
7	Proto-Germanic	buskaz	bush; thicket
8	Proto-Indo-European	bʰuH-	to become, grow, appear

Every word from Proto-Indo-European bʰuH- →Every word from Proto-Germanic buskaz →Every word from Frankish busk →