utrubidem

ū̆trŭbīdem ( ū̆trŏbīdem ), adv. [utrubi-dem], on both sides, on each or either side (when the two sides are spoken of):

utrosque percognovi utrubidem,

Plaut. Truc. 1, 2, 50 (dub.; Speng. utrosque pergnovi probe).