lengthenable

English

Etymology

lengthen +‎ -able

Adjective

lengthenable (comparative more lengthenable, superlative most lengthenable)

1. That may be lengthened.
   • 1974, John Mathieson Anderson, Charles Jones, Historical Linguistics: Theory and description in phonology, page 319:

     If we consider the etymological sources of the two sets of vowels, the lengthenable and non-lengthenable […]