Definition of "infirm"

[…] Here I stand your slave,A poor, infirm, weak, and despis’d old man.

c. 1603–1606, William Shakespeare, “The Tragedie of King Lear”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act III, scene ii]

There will be special drop-off points at all polling stations for vehicles conveying voters who are sick, infirm, or disabled.

2023 August 30, “Security Advisory For Polling Day”, in Singapore Police Force‎

Infirm of purpose!Give me the daggers: […]

c. 1606 (date written), William Shakespeare, “The Tragedie of Macbeth”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act II, scene ii]

[…] vehement passion does not always indicate an infirm judgment.

1797, Edmund Burke, “Letter III.”, in A Third Letter to a Member of the Present Parliament, on the Proposals for Peace with the Regicide Directory of France, London: […] F[rancis] and C[harles] Rivington, […]; sold also by J[ohn] Hatchard, […], page 30

He who fixes upon false Principles, treads upon Infirm ground, and so sinks […]

1692–1717, Robert South, “The Practice of Religion Enforced by Reason”, in Twelve Sermons Preached upon Several Occasions, 6th edition, volumes (please specify |volume=I to VI), London: […] J[ames] Bettenham, for Jonah Bowyer, […], published 1727, [https:// page 3]