LATIN DICTIONARYLexicon Latīnum
noun · neuterthird declension

aequor

aequor n (genitive aequoris)
Classical[ˈae̯.kʷɔr]Ecclesiastical[ˈɛː.kʷor]
№ 424 of the 1,000 commonest wordsMille Verba core vocabulary

Meaning

  1. neutereven surface
  2. neutereven surface of the sea in its quiet state; the calm, smooth sea; the sea level
    Gēns inimīca mihī Tyrrhēnum nāvigat aequor,A race inimical to me is sailing the calm Tyrrhenian Sea, bringing Ilium to Italy, along with [their] conquered household-gods.29 BCE – 19 BCE, Vergilius, Aeneis 1.67–68
  3. neuterthe sea (even when agitated by storms)
  4. neuterthe plain

Latīnē defined in Latin in our graded readers

mare plānum et lātum; ita poētae mare vocant.
aequor -oris n — in Mille Verba, Mare et Nāvēs
mare (verbum poētārum)
aequor -oris (n) — in Aeneis, ch. 2

Choosing the right word Döderlein's Latin Synonyms

Æquus · Planus · Campus

1. Æquum (from εἴκελος) denotes that which is flat, a horizontal flatness, in opposition to that which rises or sinks, to superior, inferior, and acclivis. Cic. Fam. iii. 8. Orat. iii. 6. Tac. Agr. 35. Hist. iv. 23; planum (from πλάξ) denotes ‘evenness,’ in opp. to unevenness, to montosus, saxosus. Cic. Part. 10. Quintil. v. 10, 37. 21. Hence, figuratively, æquum denotes ‘justice,’ as injustice may be considered as beginning when one part is raised above another; in the same way planum denotes clearness and distinctness, where nothing rises to interrupt the view. 2. Æquor and planities denote a flat surface with regard to its form; campus, with regard to its position, as low-lands in opp. to high-lands. (iv. 71.)

Mare · Æquor · Pontus · Pelagus

1. Mare (from μύρω) denotes the sea, as a mass of water, in opp. to terra and aër, like ἅλς, θάλασσα; æquor, pelagus, and pontus, with reference to its dimensions; æquor and pelagus, with reference to its horizontal dimension, the surface of the sea, like πέλαγος, whence πελαγίζειν, to float on the sea; pontus (from πεσεῖν, πίτνειν,) with reference to its perpendicular dimension, the depth of the sea, like πόντος, whence ποντίζειν, to sink into the sea. Colum. viii. 17. Ut in solo piscinæ posita libella septem pedibus sublimius esset maris æquor. Ovid, Met. ii. 872. Mediique per æquora ponti fert prædam. 2. Æquor (from æquus) denotes the surface of the sea in a merely physical sense; whereas pelagus (from πλάξ) with the accessory notion of its great extent and immensity. (iv. 72.)

Declension

declension
formsingularplural
nominativeaequoraequora
aecora
genitiveaequoris
aecoris
aequorum
aecorum
dativeaequorī
aecorī
aequoribus
aecoribus
accusativeaequoraequora
aecora
ablativeaequore
aecore
aequoribus
aecoribus
vocativeaequoraequora
aecora

aequor, ŏris, n. aequus.
I. In gen., an even, level surface (ante-Aug. poet.; only once in Cic. and once in Sallust): speculorum aequor, a plane surface, as of a mirror, Lucr. 4, 106; 291: in summo aequore saxi, upon the polished, smooth marble surface, id. 3, 905: camporum patentium aequora, * Cic. Div. 1, 42: campi, Verg. A. 7, 781; and without campus: Daren ardens agit aequore toto, id. ib. 5, 456: at prius ignotum ferro quam scindimus aequor, id. G. 1, 50; 1, 97; of the desert, id. ib. 2, 105: immensum spatiis confecimus aequor, id. ib. 541: primus in aequore pulvis, Juv. 8, 61; and once of the heavens: aequora caeli Sensimus sonere, Att. ap. Non. 505, 8 (Trag. Rel. p. 139 Rib.).—
II. Esp., the even surface of the sea in its quiet state, the calm. smooth sea (aequor mare appellatum, quod aequatum, cum commotum vento non est, Varr. L. L. 7, § 23 Müll.: quid tam planum videtur quam mare? ex quo etiam aequor illud poëtae vocant, Cic. Ac. Fragm. ap. Non. 65, 2 (cf. πόντου πλάξ, Pind. P. 1, 24).— Also, in gen., the sea, even when agitated by storms, Lucr. 1, 719: turbantibus aequora ventis, id. 2, 1: silvaeque et saeva quiērant aequora, Verg. A. 4, 523 et saep.: per undosum aequor, id. ib. 313: contracta pisces aequora sentiunt, Hor. C. 3, 1, 33: juventus Infecit aequor sanguine Punico, id. ib. 3, 6, 34 al.—Sometimes pleonast. with mare or pontus: vastum maris aequor arandum, Verg. A. 2, 780: tellus et aequora ponti, id. G. 1, 469.—Of the surface of the Tiber, Verg. A. 8, 89 and 96 (so, mare of the Timavus, id. ib. 1, 246; and unda of rivers, as of the Simoïs, id. ib. 1, 618).—In prose writers after the Aug. per.: placidum aequor, Tac. A. 2, 23: penetrare aequora, Val. Max. 9, 1, 1; so Curt. 4, 7; Plin. 4, 12, 24, § 76; Mel. 1, 2. Once even in Sallust: aequore et terrā, Sall. Fragm. ap. Don. ad Ter. Phorm. 2, 1, 13 (p. 390, n. 81 Kritz.) dub.

Origins

From aequus (“flat, horizontal”). Sense development to “sea” may have been partly motivated by similarity to unrelated aqua.

Quick answers

What does aequor mean in Latin?
aequor, a noun, means “even surface; even surface of the sea in its quiet state; the calm, smooth sea”.
What is the genitive of aequor?
The genitive singular is aequoris. aequor is neuter, third declension.
How do you pronounce aequor?
In classical Latin, [ˈae̯.kʷɔr]; in ecclesiastical (church) Latin, [ˈɛː.kʷor].