Surd

Chamber's Etymological of the English Language · 1895 · p. 512
surd, adj. a/g.) involving Mink produced by the action of the speech organs oil the breath (not the voice), as the ‘hard’ sounds k, /, . n, lalg.) a quantity inexpre ible by rational numbers, or which b.u« no root. (Lit deaf,' sUrd us allied 10 Sans, sva r. heavy Sure, shtbr, aaj secure, to be depended on: certain, strong; confident bryond doubt -- ados. Sure, Surely. [Fr. sur L. nxurtts. Doublet Secure.J Suretyship, shoor ti-ship. n state of being jr/z/r/j' obligation of one person to answer for another.
Readham'da tam maddeyi gor →