Examples from the Web for actu
Health in actu means, among other things, good sleeping and digesting.Pragmatism|William James
The next morning his man (in actu or potentia) enjoys his pickadels.
Nihil autem reducitur de potentia in actum, nisi per aliquod ens actu: sicut sensus fit in actu per sensibile in actu.Fundamental Philosophy, Vol. I (of 2)|Jaime Luciano Balmes
If it has this power, this must at some time be realized in actu.A History of Mediaeval Jewish Philosophy|Isaac Husik
Plus in posse quam in actu—More in possibility 20 than actuality.