English
incisively
From incisive + -ly.
A compound of incisive + -ly
Proto-Indo-European *kh₂eyd- ‘to cut, hew’
…
Proto-Italic *kaidō ‘to cut, hew, fell’
Latin caedō ‘to cut, hew, cut down, fell, cut off, cut to…’
Latin incīdō ‘to cut in, cut through’
Medieval Latin incīsīvus ‘cutting, penetrating’
English incisive
Today it means
adv In an incisive manner.
Language periods are conventional ranges, not dates for this word.
Etymograph / incisively