different between boreable vs borable

English

bore +? -able

boreable (comparative more boreable, superlative most boreable)

borable (comparative more borable, superlative most borable)

Alternative form of boreable
- 1927, Pit & Quarry (volume 15, issues 1-5, page 69)
  A borable and nailable concrete is obtained by first mixing 1 part of lime and 16-18 parts sand to form a lime mortar, and this is ground before it has completely set and then mixed with one part of cement.

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