ortus

Latin noun

Last edited: 2024-02-09
Primary meaning rising
Literal translation rising
Variants
ortus
Edited by

rising astronomical event

Cum Sole ceterae stellae in matutino ortu constitutae gaudent

‘Some planets located with a morning rising rejoice in company with the Sun’

— Firmicus Maternus, Mathesis 2.8.3

Genre: astrological compendium
Provenance: Sicily
Date: ca. 334 CE

Firmicus Maternus. 1897. Ivlii Firmici Materni Matheseos Libri VIII, ed. W. Kroll, F. Skutsch. Stuttgart: B. G. Teubner. 1.51


ascendant astrological place

Ortus est pars horoscopi

‘The rising is the degree of the ascendant’

— Firmicus Maternus, Mathesis 2.14.3

Genre: astrological compendium
Provenance: Sicily
Date: ca. 334 CE

Firmicus Maternus. 1897. Ivlii Firmici Materni Matheseos Libri VIII, ed. W. Kroll, F. Skutsch. Stuttgart: B. G. Teubner. 2.15.2


sunrise astronomical event, cardinal direction

Hoc falsum esse ex eo apparet quod aura in omnem partem vehit et contra ortum plenis velis navigatur; quod non eveniret, si semper ventus ferretur a sole.

‘That this is wrong is obvious from the fact that the breeze blows vessels in every direction and a ship can be navigated with full sails against the sunrise. This would not happen if the wind were always coming from the direction of the sun.’

— Seneca, Natural Questions 5.10.1

Genre: philosophy
Date: 62/63 CE

Seneca. Natural Questions, Volume II: Books 4-7. Translated by Thomas H. Corcoran. Loeb Classical Library 457. Cambridge, MA: Harvard University Press, 1972. 88-89


heliacal rising astronomical event

Et ob hoc a solstitio illis initium est—ultraque ortum Caniculae non valent—quia iam multum e frigida caeli parte in hanc egestum est ac sol mutato cursu in nostram rectior tendit et alteram partem aeris attrahit, alteram vero impellit.

‘And for this reason the Etesians have their beginning at the summer solstice. They do not blow strong after the rise of the Dog Star, because by then much of the cold section of the sky has been carried down to this region; and the sun, after changing direction, moves towards our region more directly and attracts one part of the atmosphere while repelling another part.’

— Seneca, Natural Questions 5.10.4

Genre: philosophy
Date: 62/63 CE

Seneca. Natural Questions, Volume II: Books 4-7. Translated by Thomas H. Corcoran. Loeb Classical Library 457. Cambridge, MA: Harvard University Press, 1972. 90-91


east cardinal direction

Sed ut ad id de quo agitur revertar, venti quattuor sunt, in ortum, occasum, meridiem septemtrionemque divisi

‘But to return to the subject which is being discussed: there are four winds, divided amongst the East, the West, the South, and the North.’

— Seneca, Natural Questions 5.16.1

Genre: philosophy
Date: 62/63 CE

Seneca. Natural Questions, Volume II: Books 4-7. Translated by Thomas H. Corcoran. Loeb Classical Library 457. Cambridge, MA: Harvard University Press, 1972. 104-105


Cite this entry
APA (7th)
Meinhardt, K. (2024). ortus (Lemma #954). The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. https://zodiacglossary.github.io/lemma/954/

Chicago (Author-Date)
Meinhardt, K. (2024). ortus (Lemma #954). The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. https://zodiacglossary.github.io/lemma/954/

MLA (9th)
Meinhardt, K. (2024). ortus (Lemma #954). The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. https://zodiacglossary.github.io/lemma/954/

Harvard
Meinhardt, K. (2024) ortus (Lemma #954), The ZODIAC Glossary: A Cross-Cultural Glossary of Ancient Astral Science. Available at: https://zodiacglossary.github.io/lemma/954/ (Accessed: December 1, 2025).

BibTeX
@misc{zodiac954,
	note = {[Online; accessed 2025-12-01]},
	author = {Meinhardt, Kierán},
	year = {2024},
	title = {ortus ({Lemma} #954)},
	url = {https://zodiacglossary.github.io/lemma/954/},
	howpublished = {https://zodiacglossary.github.io/lemma/954/},
}