Definition of actus
1 Roman law : the right to drive a beast or a vehicle over another's land —distinguished from iter and via
2 [Medieval Latin (translation of Greek energeia), from Latin actus — more at energy] : an act or thing done; specifically : a mental or spiritual act —used in Scholasticism to render Aristotle's terms energeia and entelecheia — compare energy, entelechy
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Origin and Etymology of actus
Latin, literally, driving, doing, act, deed — more at act
First Known Use: 1812
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