WDTPRS – 19th Ordinary Sunday: frightening consolation
The Collect for the 19th Sunday of Ordinary Time was not in previous editions Missale Romanum before the 1970 Novus Ordo. It has roots in the 9th century Sacramentary of Bergamo and thus is ancient text… sort of.
Note that for the 2002 Missale Romanum there was a variation from the 1970MR. In the 2002MR the ablative absolute clause “docente Spiritu Sancto” was inserted.
Omnipotens sempiterne Deus,
quem [docente Spiritu Sancto – not in the 1970MR]
paterno nomine invocare praesumimus,
perfice in cordibus nostris spiritum adoptionis filiorum,
ut promissam hereditatem ingredi mereamur.
Paternus, a, um is an adjective, “fatherly”. Literally, a paternum nomen would be “Fatherly name”. In