English
inertly
From inert + -ly.
A compound of inert + -ly
Proto-Indo-European *h₂er- ‘to fit, to fix, to put together, to slot’
…
Proto-Italic *artis
Latin ars ‘skill, art’
Latin iners ‘inactive, inert’
French inerte ‘inert, inactive’
English inert
Today it means
adv In an inert manner.
Language periods are conventional ranges, not dates for this word.
Etymograph / inertly