ephemeris

From New Latin ephēmeris, from Ancient Greek ἐφημερίς (ephēmerís, “diary, calendar”), from ἐφήμερος (ephḗmeros, “daily”).

• (UK) IPA^(key): /ɪˈfɛməɹɪs/

ephemeris (plural ephemerides or ephemerises)

1. (obsolete, singular or plural) A journal or diary.
   • 1638, Thomas Herbert, Some Yeares Travels, I:

     Wee heard the King was solacing at the Caspian Sea, whither now wee are travelling. Till then let us keepe an Ephemerides or day-journey.

2. (astronomy) A table giving the apparent position of celestial bodies throughout the year; normally given as right ascension and declination
3. Software that calculates the apparent position of celestial bodies.

• ephemeride

From the Ancient Greek ἐφημερῐ́ς (ephēmerís, “diary”, “journal”, especially “a military record”; “day-book”, “account-book”), from ἐφήμερος (ephḗmeros, “living but a day”, hence “short-lived”; “for the day”, “daily”), from ἐπ(ί) (ep(í), “[motive] for”) +‎ ἡμέρα (hēméra, “day”).

• (Classical) IPA^(key): /eˈpʰeː.me.ris/, [ɛˈpʰeː.mɛ.rɪs]

ephēmeris f (genitive ephēmeridis); third declension

1. a day-book, diary, ephemeris
2. a journal, periodical
   • 1866 February 12th, Pope Pius IX, “Papal Brief in favour of ‘La Civiltà Cattolica’” in The Dublin Review, New Series, volume VII (July–October, 1866), № xiii, page 230:

     Qui Religiosi Viri, Nostris desideriis omni observantia et studio quam libentissime obsecudantes, iam inde ab anno 1850 Ephemeridem, cui titulus La Civiltà Cattolica, conscribendam, typisque vulgandam susceperunt.

     Which aforesaid religious, most willingly seconding our wishes with all observance and zeal, undertook from that very time (the year 1850) the writing and publishing a journal called “La Civiltà Cattolica.” ― translation from the same source

Third declension.

• (journal): ācta

• ephēmericus
• ephēmerida
• ephēmeron

• Catalan: efemèride
• English: ephemeris
• French: éphéméride
• Galician: efeméride
• Italian: effemeride
• Portuguese: efeméride
• Spanish: efeméride

• ĕphēmĕris in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• ephemeris in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• ĕphēmĕris in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette, page 593/1
• ephemeris in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• ephemeris in William Smith et al., editor (1890) A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin