Etymograph

English

dissect

Dissect comes from Latin dissectus ‘dissected’, from dissecare ‘to cut asunder, cut up’, and ultimately from Proto-Indo-European *sek-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*sek-1‘to cut’reconstructed
  2. Proto-Italicc. 1500–700 BCE*sekaō1‘to cut’reconstructed
  3. Latinc. 75 BCE–200 CEsecō2as secare‘to cut’
  4. Latinc. 75 BCE–200 CEdissecare2‘to cut asunder, cut up’next step skipped: Latin dissecō
  5. Latinc. 75 BCE–200 CEdissectus2‘dissected’past participle of dissecare
  6. Englishearliest quotation 2000dissect2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin seco
  2. 2 Wiktionary, English dissect
  3. Earliest quotation in Wiktionary’s entry: 2000, Winona Lu-Ann Stevenson, Decolonizing Tribal Histories: “Academics tend to take Indigenous oral histories out of…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*sek-Wiktionary, Latin seco‘to cut’reconstructed
  2. Proto-Italicc. 1500–700 BCE*sekaōWiktionary, Latin seco‘to cut’reconstructed
  3. Latinc. 75 BCE–200 CEsecōWiktionary, English dissectas secare‘to cut’
  4. Latinc. 75 BCE–200 CEdissecareWiktionary, English dissect‘to cut asunder, cut up’next step skipped: Latin dissecō
  5. Latinc. 75 BCE–200 CEdissectusWiktionary, English dissect‘dissected’past participle of dissecare
  6. Englishearliest quotation 2000dissectWiktionary, English dissect. Earliest quotation in Wiktionary’s entry: 2000, Winona Lu-Ann Stevenson, Decolonizing Tribal Histories: “Academics tend to take Indigenous oral histories out of…”

Linked words

through Proto-Indo-European *sek- ‘to cut’

saw, design, sign, ship, seal, sack, scarlet, sawyer, sax, shingle, scythe, sich, sigil, desiccation, sedge, sain, desiccant, 60 more

through Proto-Italic *sekaō ‘to cut’

sexuality, homosexual, 19 more

through Latin secō ‘to cut’

sex, risk, sexual, section, segment, sickle, het, insect, seg, brassica, 21 more

Today it means

verb To study an animal's anatomy by cutting it apart; to perform a necropsy or an autopsy.

Sources

Sources: Wiktionary, “dissect”; the older steps come from the Wiktionary entry for Latin seco. 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- / dissect

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