English
expoundable
From expound + -able.
Formed from expound + -able
Proto-Indo-European *tḱey- ‘to cultivate’
…
Latin pōnō ‘to place, put’
Latin expono ‘to make conspicuous, to put something where…’
Old French espondre ‘to tell, to recount’
Middle English expounden
English expound
Today it means
adj Able to be expounded.
Language periods are conventional ranges, not dates for this word.
Etymograph / expoundable