Where does “COYBIG” come from?

COYBIG (English) comes from English coy, from Middle English coy, from Old French coi, from Old French quei, from Latin quiētus, from Latin quiēscō, from Latin quiēs, from Proto-Italic kʷiētis — to rest; rest, peace.

Ancestry of “COYBIG”, step by step

COYBIG traces back through 3 separate lines of ancestry.

via English coy

Step	Language	Word	Meaning
1	English	coy	Bashful, shy, retiring; Quiet, reserved, modest;...
2	Middle English	coy	—
3	Old French	coi	—
4	Old French	quei	quiet, still
5	Latin	quiētus	at rest/nap, quiet, keeping quiet, quietude, quietness
6	Latin	quiēscō	to rest, sleep, repose
7	Latin	quiēs	the rest of sleep, repose
8	Proto-Italic	kʷiētis	—
9	Proto-Indo-European	kʷyéh₁tis	—
10	Proto-Indo-European	kʷyeh₁-	to rest; rest, peace

via English [[boys

Step	Language	Word	Meaning
1	English	[[boys	—

via English Boys]] [[in]] [[green

Step	Language	Word	Meaning
1	English	Boys]] [[in]] [[green	—

Every word from Proto-Indo-European kʷyeh₁- →Every word from Proto-Indo-European kʷyéh₁tis →Every word from Proto-Italic kʷiētis →