perpetual

Etymology

From Middle English perpetuel, from Old French perpetuel, from Latin perpetuālis (“universal”), from perpetuus, from petō.

adj

1. Lasting forever, or for an indefinitely long time.
2. Set up to be in effect or have tenure for an unlimited duration.
   perpetual copyright
3. Continuing; uninterrupted.
   There are perpetual requests for changes as new payloads and new demands and modifications are suggested by the users. June 6, 1986, Richard Feynman, “Personal observations on the reliability of the Shuttle”, in Presidential Commission on the Space Shuttle Challenger Accident, Report to the President
4. (botany) Flowering throughout the growing season.
   By means of artificial hybridization, practised for a series of years, he has succeeded in producing a race of carnations which are perpetual bloomers.
   The hybrid perpetual roses as a rule require to be pruned to within 4 to 6 inches of the ground.

noun

1. Ellipsis of perpetual check..