transmeate
To pass over or beyond.
obsolete, rare
“The transparency of the air, and of diaphanous bodies in general, is wholly inexplicable, if we suppose that a foreign body, emanating from a source of light, (for instance, the sun,) transmeates them; for this supposition would account for their ..."
Where it comes from
From Latin transmeatus, past participle of transmeare (“to pass across”), from trans (“across, over”) + meare (“to go”).
Adapted from the Wiktionary entry transmeate (CC BY-SA 4.0).