Archit. Obs. [? f. WHELM v. + -ER1.] ? A stone placed horizontally. (But cf. WHEELER 10.)
1618. in Willis & Clark, Cambridge (1886), I. 207. Doresteds with … whitestone heads with whelmers and kneelers over the same of free stone.
1688. R. Holme, Armoury, III. 472/2. A Wall whose Door head, Cap, or Cover is called a Square, or a Cover of Whelmers and Kneelers.
