Where does “overcurrent” come from?

Overcurrent combines Old English ofer- (over) with Latin currere (to run), ultimately deriving from Proto-Indo-European kers- (to run).

overcurrent (English): A larger-than-intended electric current

Definitions

Step	Language	Word	Meaning
1	English	over	Discontinued; ended or concluded; Thoroughly;...
2	Middle English	over	riverbank, seashore, brink
3	Old English	ōfer	riverbank, seashore, brink, edge, margin, border
4	Proto-West Germanic	obar	over, above
5	Proto-Germanic	uber	over; over, above
6	Proto-Indo-European	upér	above; over
7	Proto-Indo-European	upó	under, below
8	Proto-Indo-European	h₃ewp-	—

overcurrent — Etymology, Origin & Word History | Etymology Explorer