English

fixly

From fix + -ly.

Formed from fix + -ly

Proto-Indo-European *dʰeygʷ- ‘to jab’

…

Latin fīxus ‘immovable’

Old French fix ‘fastened’

Old French *fixer

Middle English fixen

English fix

Today it means

adv Fixedly.

Language periods are conventional ranges, not dates for this word.