"Protonotary" is a word in ENGLISH

Formerly, one who had the charge of writing the acts
of the martyrs, and the circumstances of their death; now, one of
twelve persons, constituting a college in the Roman Curia, whose office
is to register pontifical acts and to make and preserve the official
record of beatifications.

Same as Prothonotary.

A chief notary or clerk.

Formerly, a chief clerk in the Court of King's Bench
and in the Court of Common Pleas, now superseded by the master.

The chief secretary of the patriarch of
Constantinople.

A register or chief clerk of a court in certain States
of the United States.