obverted

For E., when obverted, becomes A.; every A, when converted, degenerates into I.; every I., when obverted, becomes O.; O cannot be converted, and to obvert it again is merely to restore the former proposition: so that the whole process moves on to inevitable dissolution.

Logic Deductive and Inductive Carveth Read 1889

And thus much will our Selenites do, if obverted to the raies of the Moon in right angles; which if all that is really in - tended by the name, (for the very fame reafon) I know not why it may not as well be called the Sun-Jione too, fince it equally re - prefents the one as well as the other.

The natural history of Oxford-shire : being an essay toward the natural history of England 1677