English
nocive
Nocive comes from Latin nocīvus ‘hurtful, injurious, noxious’, from noceō ‘to harm’, and ultimately from Proto-Indo-European *neḱ- ‘perish, disappear’.
- Proto-Indo-Europeanc. 4500–2500 BCE*neḱ-1‘perish, disappear’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*noḱ-éye-ti1reconstructed
- Proto-Italicc. 1500–700 BCE*nokeō1‘to harm, hurt, injure’reconstructed
- Latinc. 75 BCE–200 CEnoceō2‘to harm’
- Latinc. 75 BCE–200 CEīvus3
- Latinc. 75 BCE–200 CEnocīvus2‘hurtful, injurious, noxious’
- Englishtodaynocive2
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Latin noceo
- 2 Wiktionary, English nocive
- 3 Wiktionary, Latin nocivus
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*neḱ-Wiktionary, Latin noceo‘perish, disappear’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*noḱ-éye-tiWiktionary, Latin noceoreconstructed
- Proto-Italicc. 1500–700 BCE*nokeōWiktionary, Latin noceo‘to harm, hurt, injure’reconstructed
- Latinc. 75 BCE–200 CEnoceōWiktionary, English nocive‘to harm’
- Latinc. 75 BCE–200 CEīvusWiktionary, Latin nocivus
- Latinc. 75 BCE–200 CEnocīvusWiktionary, English nocive‘hurtful, injurious, noxious’
- EnglishtodaynociveWiktionary, English nocive
Linked words
through Proto-Indo-European *neḱ- ‘perish, disappear’
nectar, obnoxious, necropolis, internecine, 17 more
through Latin noceō ‘to harm’
innocent, nuisance, innocence, noxious, innocuous, 12 more
through Latin īvus
positive, festival, native, naive, festive, nativity, sativa, festivity, 8 more
Today it means
adj Hurtful, injurious; noxious.
Sources
Sources: Wiktionary, “nocive”; the older steps come from the Wiktionary entries for Latin noceo, Latin nocivus. 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 *neḱ- / nocive