Webster's Revised Unabridged Dictionary · 1913

Perpetual

Perpetual , adjective

[Old English perpetuel, French perpétuel, from Latin perpetualis, from perpetuus continuing throughout, continuous, from perpes, -etis, lasting throughout.]

Neverceasing; continuing forever or for an unlimited time; unfailing; everlasting; continuous.
Unto the kingdom of perpetual night. — Shakespeare
Perpetual feast of nectared sweets. — Milton
Collocations (5)
Circle of perpetual apparition or Circle of perpetual occultation , See under Circle.
Perpetual calendar , a calendar so devised that it may be adjusted for any month or year.
Perpetual curacy (Ch. of Eng.) , a curacy in which all the tithes are appropriated, and no vicarage is endowed. — Blackstone
Perpetual motion , See under Motion.
Perpetual screw , See Endless screw, under Screw.