LATIN DICTIONARYLexicon Latīnum
English → Latin

“horizontal” in Latin

The English word horizontal itself goes back to Latin horizōn.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

horizontal
libratus: aequus (level): directus (going straight on). To make anything horizontal, ad regulam et libellam exigere: a horizontal surface, *locus ad libellam aequus: libramentum. A horizontal line, linea directa.

Quick answer

What is the Latin word for horizontal?
The usual Latin words for “horizontal” are lībrō, aequus, dīrigō; also lībrāmentum. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.