CONSIDERING THE LINGUISTIC INFLUENCE!!!!!! YES!!
In case you havent noticed, spanish is a romance language, meaning it came from LATIN!!
Your source has one problem, and thats, that it doesnt state any dates and time periods!
The Romans conquered that terretory and Romanised it, and this beverage was also known in Italica.
There are a number of high frequency words in Spanish that do not come from Latin. For example the word for dog "perro" is not Latin-derived. There are others, too.
"First it should be pointed out that about a fifth of all Spanish words were not derived from Latin. Most of these came from Gothic and Arabic (see the history above), though of course many others are from Basque..."
http://www.geocities.com/Athens/Aegean/2444/splatin.html