The act or state of following, or being subsequent.(noun)
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Use "subsequency" in a sentence
"The word "last", it is to be lamented, is not sufficiently final to preclude the emulative subsequency of all we leave behind: we cannot close the doors of language on the thousand little beginnings that tread on the heels of the safest conclusion."
"In individual cases, their movement has been interrupted by so many pauses, and even by so many occasional retrogressions, that great care must be taken not to infer superior excellence from mere subsequency."