Obiter

·adv In passing; incidentally; by the way.

obiter
ŏb-ĭter, adv., on the way, in going or passing along (except in Laber., not anteAug.; cf. Charis. 18...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
obiter
ob-iter adv., on the way, while travelling: leget aut scribet, Iu.—Meanwhile, incidental...

An Elementary Latin Dictionary