English
dissection
Dissection comes from Latin dissecō ‘to dissect, dismember’, from secō ‘to cut, cut off’, and ultimately from Proto-Indo-European *sek-.
- Proto-Indo-Europeanc. 4500–2500 BCE*sek-1‘to cut, cut off, sever’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*sékh₁yeti1reconstructed
- Proto-Italicc. 1500–700 BCE*sekaō1‘to cut’reconstructed
- Latinc. 75 BCE–200 CEsecō1‘to cut, cut off’
- Latinc. 75 BCE–200 CEdissecō2‘to dissect, dismember’
- Latinc. 75 BCE–200 CEdissectio3as dissectiōnemby way of Middle French dissection
- Englishearliest quotation 2015dissection3
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Latin disseco
- 2 Wiktionary, Latin dissectio
- 3 Wiktionary, English dissection
- Earliest quotation in Wiktionary’s entry: 2015, Moritz Crönlein et al.: “Most of the carotid artery dissections (CADs) occur spontaneously…”.
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*sek-Wiktionary, Latin disseco‘to cut, cut off, sever’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*sékh₁yetiWiktionary, Latin dissecoreconstructed
- Proto-Italicc. 1500–700 BCE*sekaōWiktionary, Latin disseco‘to cut’reconstructed
- Latinc. 75 BCE–200 CEsecōWiktionary, Latin disseco‘to cut, cut off’
- Latinc. 75 BCE–200 CEdissecōWiktionary, Latin dissectio‘to dissect, dismember’
- Latinc. 75 BCE–200 CEdissectioWiktionary, English dissectionas dissectiōnemby way of Middle French dissection
- Englishearliest quotation 2015dissectionWiktionary, English dissection. Earliest quotation in Wiktionary’s entry: 2015, Moritz Crönlein et al.: “Most of the carotid artery dissections (CADs) occur spontaneously…”
Equivalent to dissect + -ion
Proto-Indo-European *sek- ‘to cut’
Proto-Italic *sekaō ‘to cut’
Latin secō ‘to cut’
Latin dissecare ‘to cut asunder, cut up’
Latin dissectus ‘dissected’
English dissect
The story
Borrowed from Latin dissectiōnem, perhaps via Middle French dissection.
Linked words
through Proto-Indo-European *sek- ‘to cut, cut off, sever’
saw, design, sign, ship, seal, sack, scarlet, sawyer, sax, shingle, scythe, sich, sigil, sedge, sain, desiccant, desiccation, 61 more
through Proto-Italic *sekaō ‘to cut’
sexuality, homosexual, 20 more
through Latin secō ‘to cut, cut off’
sex, risk, sexual, segment, insect, sickle, het, seg, brassica, 22 more
Today it means
noun The act of dissecting.
Sources
Sources: Wiktionary, “dissection”; the older steps come from the Wiktionary entries for Latin disseco, Latin dissectio. 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 *sek- / dissection