Where does “cai cơ” come from?

cai cơ (Vietnamese) comes from Vietnamese có, from French commission, from Russian коми́ссия, from Latin commissio, from Latin committo, from Latin cōn-, from Latin cum, from Old Latin com — to bend; curve; arch; vault; to bow, bend, arch,...

cai cơ (Vietnamese): Battalion Commander; a military officer title (3rd rank) during Nguyễn lords' period, above and below

Definitions

Battalion Commander; a military officer title (3rd rank) during Nguyễn lords' period, above and below

Ancestry of “cai cơ”, step by step

cai cơ traces back through two separate lines of ancestry.

via Vietnamese có

Step	Language	Word	Meaning
1	Vietnamese	có	to have; do; does; do
2	French	commission	commission fee charged by an agent or broker for carrying out a transaction
3	Russian	коми́ссия	chores
4	Latin	commissio	commission
5	Latin	committo	I commit; I begin; I carry on
6	Latin	cōn-	Used in compounds to indicate a being or bringing together of several objects
7	Latin	cum	with, along with; at; -fold
8	Old Latin	com	Alternative form of cum
9	Proto-Italic	kom	with, along, at
10	Proto-Indo-European	ḱóm	beside, near, by, with
11	Proto-Indo-European	ḱe	Deictic particle, here; Post-positional...
12	Middle English	kyt	—
13	German	kitt	putty certain kinds of cement used for fixing e.g. window panes
14	Old High German	kuti	—
15	Proto-West Germanic	kwidu	gum, resin
16	Proto-Germanic	kweduz	resin
17	Proto-Indo-European	gʷet-	resin, gum; to say, speak
18	Proto-Indo-European	gū-	to bend; curve; arch; vault; to bow, bend, arch,...

via Vietnamese cái

Step	Language	Word	Meaning
1	Vietnamese	cái	a thing; a whatsit; the solid bits of a broth;...
2	Proto-Vietic	-keːʔ	woman, female

Every word from Proto-Indo-European gū- →Every word from Latin cōn- →Every word from Proto-Indo-European gʷet- →