LATIN DICTIONARYLexicon Latīnum
noun · neuterthird declension

columnar

columnar n (genitive columnāris)
Classical[kɔˈɫʊm.nar]Ecclesiastical[koˈlum.nar]

Meaning

  1. neutermarble quarry

Declension

declension
formsingularplural
nominativecolumnarcolumnāria
genitivecolumnāriscolumnārium
dativecolumnārīcolumnāribus
accusativecolumnarcolumnāria
ablativecolumnārīcolumnāribus
vocativecolumnarcolumnāria

cŏlumnar, āris, n. for columnarium,
I. a stone-quarry, marble-quarry, Inscr. Orell. 4034.

Origins

Substantivation of apocopated columnāre, nominative neuter singular of columnāris (“columnar”) or directly from columna + -ar. Columns were mostly made of marble, whence the name.

Quick answers

What does columnar mean in Latin?
columnar, a noun, means “marble quarry”.
What is the genitive of columnar?
The genitive singular is columnāris. columnar is neuter, third declension.
How do you pronounce columnar?
In classical Latin, [kɔˈɫʊm.nar]; in ecclesiastical (church) Latin, [koˈlum.nar].