What does thieldō mean in Latin?

thieldō, a noun, means “A breed of horse from Galicia and Asturias.”.

What is the genitive of thieldō?

The genitive singular is thieldōnis. thieldō is masculine, third declension.

In classical Latin, [tʰiˈɛɫ.doː]; in ecclesiastical (church) Latin, [tiˈɛl.do].

noun · masculinethird declension

thieldō m (genitive thieldōnis)

Classical[tʰiˈɛɫ.doː]Ecclesiastical[tiˈɛl.do]

A breed of horse from Galicia and Asturias.
In eadem Hispania Gallaica gens et Asturica equini generis, hi sunt quos thieldones vocamus, minore forma appellatos Asturcones,[…]1950 translation by H. Rackham Also in Spain the Gallaic and Asturian tribes breed those of the horse kind that we call theldones, though when more of a pony type they are designated cobs, […]77 CE – 79 CE, Plinius Maior, Naturalis Historia 8.42.67

Borrowed from a pre-Roman substrate language; perhaps related to or directly borrowed from Proto-Basque *zaldi (“horse”).