Capable of being distinguished and named; able to be called by a specific name.
1635, Alexander Gill, The Sacred Philosophie of Holy Scripture, London: Joyce Norton and Richard Whitaker, Chapter 8, p. 30,
[God’s] pure being, because it is neither understandable, nor nameable by us, we speake of goodnesse, of power, &c. as of the effluences or prime acts thereof […]
(obsolete) Worthy of being named or having a name; significant; memorable (especially in negative expressions).
1810, William Coleman, An Appeal to the People, New York: C.S. Van Winkle, p. 72,
A mission hatched by Jefferson under the pretence of forming a commercial treaty, though we have neither trade of any nameable amount with Russia, nor any political concerns with her […]