PERPETUATION
prolongation, protraction, perpetuation, lengthening
(noun) the act of prolonging something; “there was an indefinite prolongation of the peace talks”
Source: WordNet® 3.1
Noun
perpetuation (countable and uncountable, plural perpetuations)
The act of prolonging existence, of keeping something alive or active.
Synonyms
• continuance, preservation
Source: Wiktionary
Per*pet`u*a"tion, n. Etym: [Cf. F. perpétuation.]
Definition: The act of making perpetual, or of preserving from extinction
through an endless existence, or for an indefinite period of time;
continuance. Sir T. Browne.
Source: Webster’s Unabridged Dictionary 1913 Edition