Where does “lọsíwájú” come from?

lọsíwájú (Yoruba) comes from Vietnamese lò, from Vietnamese bỏ, from English board, from English boardrider, from English rider, from Middle English ridere, from Middle English ryder, from Old English rīdere — to fit, to fix, to put together.

Ancestry of “lọsíwájú”, step by step

lọsíwájú traces back through 3 separate lines of ancestry.

via Vietnamese lò

Step	Language	Word	Meaning
1	Vietnamese	lò	kiln, furnace, oven, heater
2	Vietnamese	bỏ	to put, to place; to leave, to abandon; to quit
3	English	board	A relatively long, wide and thin piece of any...
4	English	boardrider	surfer
5	English	rider	One who rides, often on a horse or a motorcycle;...
6	Middle English	ridere	Alternative form of ryder
7	Middle English	ryder	A rider or equestrian; one who rides a horse; A...
8	Old English	rīdere	rider, knight
9	Old English	rīdan	to ride
10	Proto-West Germanic	rīdan	to ride
11	Proto-Germanic	rīdaną	to ride
12	Proto-Indo-European	rēydʰ-	—
13	Proto-Indo-European	h₂er-	to fit, to fix, to put together

via Proto-Nguni sí-

Step	Language	Word	Meaning
1	Proto-Nguni	sí-	First-person plural object concord; Class 7...
2	Proto-Germanic	sin-	ever, eternal, perpetual
3	Proto-Indo-European	sem-	together, one

via Yoruba iwájú

Step	Language	Word	Meaning
1	Yoruba	iwájú	front

Every word from Proto-Indo-European h₂er- →