English
instructory
From instruct + -ory.
Formed from instruct + -ory
Proto-Indo-European *strew- ‘to spread, strew’
…
Proto-Italic *strowō ‘to pile up’
Latin struō ‘pile up, arrange’
Latin īnstruō ‘I instruct’
Latin īnstrūctus ‘arranged’
English instruct
Today it means
adj Of or relating to instruction; instructive; educational.
Language periods are conventional ranges, not dates for this word.
Etymograph / instructory