English
instructor
Instructor comes from Latin instructor ‘someone who arranges something’, from īnstruō ‘build, construct’, and ultimately from Proto-Indo-European *strew- ‘to spread, strew’.
- Proto-Indo-Europeanc. 4500–2500 BCE*strew-1‘to spread, strew’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*stréweti1reconstructed
- Proto-Italicc. 1500–700 BCE*strowō1‘to pile up’reconstructed
- Latinc. 75 BCE–200 CEstruō1‘to place one thing on top of another, to pile up, join together’
- Latinc. 75 BCE–200 CEīnstruō1‘build, construct’
- Latinc. 75 BCE–200 CEinstructor2‘someone who arranges something’
- Englishearliest quotation 2014instructor2
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Latin instructor
- 2 Wiktionary, English instructor
- Earliest quotation in Wiktionary’s entry: 2014, Jacqueline Taylor, Life without tenure: how I've found fulfilment in US academi: “According to the National Centre for Education Statistics' most…”.
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*strew-Wiktionary, Latin instructor‘to spread, strew’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*stréwetiWiktionary, Latin instructorreconstructed
- Proto-Italicc. 1500–700 BCE*strowōWiktionary, Latin instructor‘to pile up’reconstructed
- Latinc. 75 BCE–200 CEstruōWiktionary, Latin instructor‘to place one thing on top of another, to pile up, join together’
- Latinc. 75 BCE–200 CEīnstruōWiktionary, Latin instructor‘build, construct’
- Latinc. 75 BCE–200 CEinstructorWiktionary, English instructor‘someone who arranges something’
- Englishearliest quotation 2014instructorWiktionary, English instructor. Earliest quotation in Wiktionary’s entry: 2014, Jacqueline Taylor, Life without tenure: how I've found fulfilment in US academi: “According to the National Centre for Education Statistics' most…”
Formed from instruct + -or
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
Linked words
through Proto-Indo-European *strew- ‘to spread, strew’
strain, straw, stray, constructive, obstruction, obstruct, perestroika, stripling, misconstrue, 9 more
through Proto-Italic *strowō ‘to pile up’
through Latin struō ‘to place one thing on top of another, to pile…’
construction, destroy, structure, destruction, destructive, construct, construe, 5 more
through Latin īnstruō ‘build, construct’
Today it means
noun One who instructs; a teacher.
Sources
Sources: Wiktionary, “instructor”; the older steps come from the Wiktionary entry for Latin instructor. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / Proto-Indo-European *strew- / instructor