Where does “Upper Bauko” come from?

Upper Bauko (Ilocano) comes from English Upper Bauko, from English upper, from Middle English upper.

Ancestry of “Upper Bauko”, step by step

StepLanguageWordMeaning
1EnglishUpper Bauko—
2EnglishupperAt a higher level, rank or position; Situated on...
3Middle Englishupper—
Every word from Middle English upper →Every word from English upper →Every word from English Upper Bauko →