Where does “furd” come from?

furd (Middle English) comes from Old English fierd, from Proto-West Germanic fardi, from Proto-Germanic fardiz, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “furd”, step by step

Step	Language	Word	Meaning
1	Old English	fierd	a national army, the entire land force of a...
2	Proto-West Germanic	fardi	journey, voyage
3	Proto-Germanic	fardiz	journey, voyage
4	Proto-Indo-European	per-	before, in front; first; to go through
5	Proto-Indo-European	pr̥tós	passed , crossed

Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Germanic fardiz →