English
noctiluca
Noctiluca comes from Latin noctilūca ‘something which shines by night’, and goes back to luceō ‘to be light, clear’.
- Latinc. 75 BCE–200 CEluceō1‘to be light, clear’
- Latinc. 75 BCE–200 CEnoctilūca2‘something which shines by night’
- Englishearliest quotation 1917noctiluca2
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Latin noctiluca
- 2 Wiktionary, English noctiluca
- Earliest quotation in Wiktionary’s entry: 1917, Papers from the Department of Marine Bio: “If a number of noctilucas are punctured with a…”.
Earlier history uncertain. See Wiktionary.
Lineage
- Latinc. 75 BCE–200 CEluceōWiktionary, Latin noctiluca‘to be light, clear’
- Latinc. 75 BCE–200 CEnoctilūcaWiktionary, English noctiluca‘something which shines by night’
- Englishearliest quotation 1917noctilucaWiktionary, English noctiluca. Earliest quotation in Wiktionary’s entry: 1917, Papers from the Department of Marine Bio: “If a number of noctilucas are punctured with a…”
Linked words
through Proto-Indo-European *lewk- ‘bright’
light, low, link, los, ounce, lucy, lea, lunar, luna, lux, lynx, illuminate, illumination, luminous, lumen, lumia, luminosity, luce, loach, lum, luminescent, lune, leucine, luminary, luminal, 71 more
through Proto-Italic *l(o)ukēō
through Latin luceō ‘to be light, clear’
Today it means
noun A firefly, glowworm.
Sources
Sources: Wiktionary, “noctiluca”; the older steps come from the Wiktionary entry for Latin noctiluca. 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 / Latin luceō / noctiluca