In Micraelius, Lexicon philosophicum (1662), I find this definiion of "duratio":
DURATIO est mora seu permanentia rei in essentia
For "mora", I find "delay", which does not quite make sense.
I find a similar expression in Eustache de Saint-Paul:
DURATIO, quae dici potest permanentia seu mora rei in suo esse...
Has "mora" acquired new shades of meaning (so to say) in early modern scholastic philosophy?