To this outward structure was joined that strength of constitution, patient of severest toil and hardship; insomuch that for the most part of his life, in the fiercest extremity of cold, he took no other advantage of a fire, than at the greatest distance that he could, to look upon it.
The slightest effort made the patient cough. He would stand leaning on a stick and holding a hand to his side, and when the paroxysm had passed it left him shaking.
2013 June 1, “A better waterworks”, The Economist, volume 407, number 8838, page 5 (Technology Quarterly):
An artificial kidney these days still means a refrigerator-sized dialysis machine. Such devices mimic […] real kidneys […] . But they are nothing like as efficient, and can cause bleeding, clotting and infection—not to mention inconvenience for patients, who typically need to be hooked up to one three times a week for hours at a time.
The subject of a passive verb is usually a patient.
1982, Paul J. Hopper, Tense-aspect: Between Semantics & Pragmatics, ISBN 9027228655:
The number of a first or second person participant is generally marked for both agent and patient in all aspects.
2004, Paul Kroeger, Analyzing Syntax: A Lexical-Functional Approach, ISBN 0521016541, page 292:
Since we have argued that the absolutive argument in Dyirbal is the grammatical subject of its clause, we must conclude that in the antipassive construction the agent replaces the patient as grammatical subject.
One who, or that which, is passively affected; a passive recipient.
c. 1658, Dr. Henry More, Government of the Tongue
Malice is a passion so impetuous and precipitate, that it often involves the agent and the patient.
1988, Sarah Waterlow & Sarah Broadie, Nature, Change, and Agency in Aristotle's Physics, ISBN 0198244827, page 159:
For it seems clear that the subject of change is the changed, i.e. the patient -- on one proviso. the proviso is that there be an agent or changer.
1994, Larry Cochran & Joan Laub, Becoming an Agent: Patterns and Dynamics for Shaping Your Life, ISBN 0791417190:
How does a person change from a patient to an agent in shaping and living a course of life?
1999, Lloyd P. Gerson, Aristotle: Logic and metaphysics, ISBN 0415148855, page 127:
According to the tradition, when an agent acts on a patient, the change is located in the patient. If the patient reacts on the agent, then the agent is a patient in the new relation.
2010, Mohua Banerjee & Anil Seth, Logic and Its Applications: Fourth Indian Conference, ICLA 2011, ISBN 3642180256, page 7:
The starting point is that all events involve an agent and a patient. Agents and patients are modelled as (material or non-material) objects, and can therefore be represented as points in conceptual spaces.