underbody (English) comes from English under, from Middle English under, from Old English under, from Proto-Germanic under, from Proto-Indo-European h₁entér, from Proto-Indo-European h₁en — in; in, inside.
underbody (English): The underparts of a bird or animal; The underside...
Definitions
The underparts of a bird or animal; The underside...
Ancestry of “underbody”, step by step
underbody traces back through two separate lines of ancestry.