1656, [attributed to Philip King], The Surfeit. To A B C, London: […] Edw[ard] Dod[…], →OCLC, §. 4, page 33:
The third univerſal is appetite; every perfect and imperfect living creature acquires ſuſtenance to eate and drink. For exiſtential or ſenſual, I grant many, that there is a Sun that ſhineth, that the fire heateth, &c. yet a blind man and the Paralytick denies both.
1818, S[amuel] T[aylor] Coleridge, “Essay II”, in The Friend: A Series of Essays, […] to Aid in the Formation of Fixed Principles in Politics, Morals, and Religion, with Literary Amusements Interspersed.[…], new edition, volume III, London: […][S. Curtis] for Rest Fenner,[…], →OCLC, footnote, pages 96–97:
[T]he essential cause of fiendish guilt, when it makes itself existential and peripheric— […] I find the only explanation of a moral phænomenon not very uncommon in the last moments of condemned felons—viz. the obstinate denial, not of the main guilt, which might be accounted for by ordinary motives, but of some particular act, which had been proved beyond all possibility of doubt, and attested by the criminal's own accomplices and fellow-sufferers in their last confessions: […]
Most of the subjects had terminal cancer, and several died within a year after the trial—but not before having a mental adventure that appeared to have eased the existential gloom of their last days.
[Karl] Jaspers' main concern has been with existential dread, which he regards not as a symptom of mental illness, but as a result of rejecting religious faith. He proposes that man's only way out of existential dread is through a "leap into faith" which reconciles man with himself and with God, and provides an experience of the absolute which transcends mere sense experience.
2015, J[ames] A. Eaton [et al.], “Trade-driven Extinctions and Near-extinctions of Avian Taxa in Sundaic Indonesia”, in Forktail: Journal of Asian Ornithology, volume 31, Bedford, Bedfordshire: Oriental Bird Club, →ISSN, →OCLC, page 1, column 1:
Here, therefore, we seek to assemble and assess the evidence to provide an overview of how serious trade is as an existential threat to avian taxa in Sundaic Indonesia.
To [Elon] Musk, his vast fortune is a mere side effect of his ability not just to see but to do things others cannot, in arenas where the stakes are existential.
In recent books on logic, distinction is made between two orders of inquiry concerning anything. First, what is the nature of it? how did it come about? what is its constitution, origin, and history? And second, What is its importance, meaning, or significance, now that it is once here? The answer to the one question is given in an existential judgment or proposition. The answer to the other is a proposition of value, what the Germans call a Werthurtheil, or what we may, if we like, denominate a spiritual judgment.
Some existential thinkers are concerned with artistic expression only indirectly, that is, they are passionately interested critics and analysts of art works.
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2014, Tuomas Huumo, Liina Lindström, “Partitives across Constructions: On the Range of Uses of the Finnish and Estonian ‘Partitive Subjects’”, in Silvia Luraghi, Tuomas Huumo, editors, Partitive Cases and Related Categories (Empirical Approaches to Language Typology), Berlin; Boston, Mass.: De Gruyter Mouton, →ISBN, →ISSN, part II (Uralic Languages), abstract, page 153:
In classical accounts of Finnish and Estonian grammar, the possibility of using the so-called partitive subject has been one definitional criterion for the category of existential clauses. […] We argue that existentials form a radial category, with a prototype and less canonical instances, where the prototype is clearly definable but the actual borderline between existentials and other clause types is fuzzy.