planaris

Forms

plānāris (neuter plānāre); third-declension two-termination adjective^[1][2][3]

Etymology

It is from Latin plānus¹ (“flat, level”),^[4][1][2][5] formed with the suffix -āris.^[6]

Earliest recorded meaning

Its only Classical-dictionary source is Martianus Capella (5th century AD),^[1][6] where Geometry, speaking in person, divides figures into those called planaris and solid ones, and says that the circle is a plane figure.^[4]

Semantic evolution

Lewis & Short class it as post-classical.^[1] It is a term of geometry for what lies in a plane, as opposed to a solid;^[4][5] Georges equates it with Ancient Greek ἐπίπεδος (epípedos).^[2] Du Cange and later glossaries still cite it only from Martianus Capella's phrase planaris figura.^[7]

Timeline

• 5th century AD – Martianus Capella calls the circle a figura planaris.^[4][1][6]

Meanings

Adjective

1. (Late Latin, geometry) Lying in a plane, flat, as opposed to solid.^[4][1][5][3]

References

1. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
2. ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
3. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
4. ^ a b c d e Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
5. ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
6. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
7. ^ du Cange, Charles du Fresne, et al. (1883–1887), Glossarium mediae et infimae latinitatis, augmented ed. by Léopold Favre, Niort: L. Favre