Rare and formal uses are attested; kept because the verb is still occasionally employed in ecclesiastical and historical contexts.
Definitionen
To ordain or consecrate (someone) as a bishop. The archbishop will bishop three new clergy next month.
Used almost exclusively as an attributive noun (e.g., "bishop sleeve", "bishop election"), functioning adjectivally.
Definitionen
Relating to a bishop or to the office held by a bishop; episcopal. The synod debated bishop elections across the diocese.