The Latin word is: "quercus" source: http://www.latinwordfor.com/latin-word-for-oak-tree.html
quercia is latin for oak
A Turkey oak.
quercus
Oak.
quercum
A blackjack oak is a tree, Latin name Quercus marilandica.
"Black oak" is a literal English translation of "Quercus nigra."But that is not the particular kind of oak tree to which the Latin words are linked in science and in the real world. Instead, the Latin phrase is the scientific, Latin or binomial name for the water oak. Other common names include duck, orange, possum, punk or spotted oak.
Quercus.
A black oak is an oak tree, Latin name Quercus velutina, native to eastern North America.
Quercus laurifolia
Quercus sessilis is a literal Latin equivalent of the English phrase "sessile oak." The masculine singular phrase also translates literally as "sitting oak" in English. The pronunciation will be "KWER-koos SES-see-lees" in Church and classical Latin.