LATIN DICTIONARYLexicon Latīnum
noun · masculinethird declension

gillō1

gillō m (genitive gillōnis)
Classical[ˈɡɪl.loː]Ecclesiastical[ˈd͡ʒil.lo]

Meaning

  1. A cooler for liquids

Declension

declension
formsingularplural
nominativegillōgillōnēs
genitivegillōnisgillōnum
dativegillōnīgillōnibus
accusativegillōnemgillōnēs
ablativegillōnegillōnibus
vocativegillōgillōnēs

gillo, ōnis, m.,
I. a cooling-vessel, cooler for liquids, Poët. in Anthol. Lat. 2, p. 369 and 406 Burm.; cf. βαυκάλιον gillo, Gloss. Philox.

Origins

Of uncertain origin, but perhaps related to galleta (“measure of wine, bucket pail”).

proper noun · masculinethird declension
Gillō2
Gillō m sg (genitive Gillōnis)
Classical[ˈɡɪl.loː]Ecclesiastical[ˈd͡ʒil.lo]

Meaning

  1. A Roman cognomen — famously held by
  2. Quintus Fulvius Gillo, a Roman praetor

Declension

declension
formsingularplural
nominativeGillō—
genitiveGillōnis—
dativeGillōnī—
accusativeGillōnem—
ablativeGillōne—
vocativeGillō—

Gillo, ōnis, m.,
I. the name of a legacyhunter, Juv. 1, 40.

Origins

Maybe from gillō (“cooler”).

In the Academy Smith's classical dictionaries

Quick answers

What does gillō mean in Latin?
gillō, a noun, means “A cooler for liquids”.
What is the genitive of gillō?
The genitive singular is gillōnis. gillō is masculine, third declension.
How do you pronounce gillō?
In classical Latin, [ˈɡɪl.loː]; in ecclesiastical (church) Latin, [ˈd͡ʒil.lo].