English
introvertish
From introvert + -ish.
Formed from introvert + -ish
Proto-Indo-European *wert- ‘to turn, to rotate, spin’
Proto-Italic *wertō ‘to turn’
Latin vertō ‘to turn’
Latin intrōvertere
English introvert
Today it means
adj introverted
Language periods are conventional ranges, not dates for this word.
Etymograph / introvertish