incathedrate
To officially invest into a position of authority.
obsolete, transitive
"You,"—addressing himself to both gentlemen—"are in yourselves but fellow members of the same House with us, returned hither (as we also are) to sit on these benches with us, until by our election, and by common suffrage, you are incathedrated.
to episcopize, appoint as bishop
obsolete, transitive
For (ſaid he) St. Peter the Apoſtle firſt of all for ſeven Years Space preſided over the Antiochean Church, and was there regarded with due Honour and Reverence, and illuſtriouſly incathedrated or placed in the Epiſcopal Chair.
Where it comes from
First attested in 1635; borrowed from Medieval Latin incathedrātus, perfect passive participle of incathedrō, see -ate (verb-forming suffix).
Adapted from the Wiktionary entry incathedrate (CC BY-SA 4.0).