English
irritatable
From irritate + -able.
Formed from irritate + -able
Proto-Indo-European *h₃er- ‘to move, to stir’
Proto-Indo-European *h₃reyH- ‘to churn’
Proto-Indo-European *h₃riH-tó-s ‘whirled, stirred’
Latin irrītō ‘excite, irritate, incite, stimulate’
Latin irrītātus
English irritate
Today it means
adj Capable of being irritated; irritable.
Language periods are conventional ranges, not dates for this word.
Etymograph / irritatable