English
interiorly
From interior + -ly.
A compound of interior + -ly
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁énteros ‘inner’
Latin *interus ‘inner’
Latin interior ‘inner’
English interior
Today it means
adv In the interior part; internally; inwardly.
Language periods are conventional ranges, not dates for this word.
Etymograph / interiorly