# nychthemeron

> English word · Noun · IPA /nɪkˈθɛm.ə.ɹɒn/

## Definitions
1. A period of one day and one night, a date: in the West, a period of 24 consecutive hours.

## Etymology
From Ancient Greek νυχθήμερον (nukhthḗmeron), noun use of the neuter singular form of νυχθήμερος (nukhthḗmeros, “lasting a day and night”), from νύξ (núx, “night”) + ἡμέρα (hēméra, “day”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/nychthemeron