Where does “nonrunaway” come from?

nonrunaway (English) comes from English non, from French non, from Old French non, from Latin nōn, from Old Latin noenum, from Proto-Indo-European óynos — one; single.

nonrunaway (English): Of a reaction, a process, etc.: not runaway; stable and controlled

Definitions

Of a reaction, a process, etc.: not runaway; stable and controlled

Ancestry of “nonrunaway”, step by step

nonrunaway traces back through two separate lines of ancestry.

via English non

Step	Language	Word	Meaning
1	English	non	Obsolete form of none
2	French	non	no; not; a no, a negative response
3	Old French	non	no; not; Alternative form of nom
4	Latin	nōn	not
5	Old Latin	noenum	—
6	Proto-Indo-European	óynos	one; single

via English runaway

Step	Language	Word	Meaning
1	English	runaway	A person or animal that runs away or has run...
2	English	run away	To flee by running; To leave home, or other place...

Every word from Proto-Indo-European óynos →Every word from Old Latin noenum →Every word from Latin nōn →