"without a stop or pause; unending, endless, enduring forever," 1580s, from cease (n.) + -less. Related: Ceaselessly; ceaselessness.
Entries linking to ceaseless
cease n.
"cessation, stopping" (archaic), c. 1300, from cease (n.) or else from Old French cesse "cease, cessation," from cesser.
-less
word-forming element meaning "lacking, cannot be, does not," from Old English -leas, from leas "free (from), devoid (of), false, feigned," from Proto-Germanic *lausaz (cognates: Dutch -loos, German -los "-less," Old Norse lauss "loose, free, vacant, dissolute," Middle Dutch los, German los "loose, free," Gothic laus "empty, vain"), from PIE root *leu- "to loosen, divide, cut apart." Related to loose and lease.