Definition of "subsist"

It cannot be denied it is (if not the moſt of any) a very abſtemious animall, and ſuch as by reaſon of its frigidity, paucity of bloud, and latitancy in the winter (about which time the obſervations are often made) will long ſubſist without a viſible ſuſtentation.

1650, Thomas Browne, “Of the Cameleon”, in Pseudodoxia Epidemica: […], 2nd edition, London: […] A[braham] Miller, for Edw[ard] Dod and Nath[aniel] Ekins, […], 3rd book, page 133

Let us, this day, imitate his Example in both theſe Reſpects ; and whilſt we are enjoying the good things of Life, let us remember Thoſe that want even the Neceſſaries and firſt Conveniences of it : And remember them, as We ourſelves ſhould have deſired to be remembred, had it been our ſad Lot, to ſubſiſt on other Mens Charity.

1709 December 6, Francis Atterbury, A Sermon Preach’d before the Sons of the Clergy, London: Jonah Bowyer, page 28

Remember Man! "the Univerſal Cauſe / Acts not by partial, but by gen’ral Laws ; / And makes what Happineſs we juſtly call / Subſiſt not in the Good of one, but all.

1734, [Alexander Pope], An Essay on Man. […], epistle IV, London: Printed for J[ohn] Wilford, […], page 63, lines 33–36

Firm we ſubſiſt, yet poſſible to ſwerve / Since Reaſon not impoſſibly may meet / Some ſpecious object by the Foe ſubornd, / And fall into deception unaware, / Not keeping ſtricteſt watch, as ſhe was warnd.

1667, John Milton, “Book VIII”, in Paradise Lost. […], London: […] [Samuel Simmons], […]; republished as Paradise Lost in Ten Books: […], London: Basil Montagu Pickering […], 1873, lines 359–63

It was impoſſible that the queen of France [Marie Antoinette] ſhould not be deeply affected by a conteſt, which ſo cloſely involved her neareſt and deareſt connections, and threatened ſo immediate and perhaps irreparable a breach of the harmony and friendſhip ſubſiſting between them.

1787, “The History of Europe”, in The Annual Register, or A View of the History, Politics, and Literature, for the Years 1784 and 1785, volume XXVII, London: Printed by J[ames] Dodsley, in Pall-Mall, chapter VIII, page 134, column 1