Etymology: Previous versions of the OED give the stress as: unˈsignable.
(un-prefix1 1b.)
ΘΚΠ
society > communication > indication > that which identifies or distinguishes > personal identification > signature > [adjective] > capable of signing > not
unsignable1802
1802 CanningLet. in Ld. Malmesbury Diaries & Corr. (1844) IV. 96 I commit the paper to your discretion. If signable people should fall in your way, or if unsignable,..use it.
This entry has not yet been fully updated (first published 1926; most recently modified version published online June 2019).