What does MONG stand for?

Mongolian - Language, etc.

Mongrel (DSUE)

Moning - Tea trade (ROG)

Montagnais - NCIC snowmobile make code (NCIC)

Mongolisch - Mongolian - German (AD)

Mongol (AD)

Mongolia (SHCU)

Monguillon - Botanist in plant scientific name (HUH)