English
incursionist
From incursion + -ist.
Formed from incursion + -ist
Proto-Indo-European *ḱers- ‘to run’
…
Proto-Italic *korzō ‘to run’
Latin currō ‘to run’
Latin incurrō ‘to attack, invade’
Latin incursiō ‘an invasion, incursion’
English incursion
Today it means
noun One who makes an incursion; an invader.
Language periods are conventional ranges, not dates for this word.
Etymograph / incursionist