The Iberian peninsular was inhabited by arabic speakers for over 700 years, there are a huge number of words in castellano (the Spanish language), directly borrowed from them.[0]

In total around 8% of the spanish dictionary is derived from arabic.[1]

[0] http://en.wikipedia.org/wiki/Arabic_language_influence_on_th...

[1] http://cvc.cervantes.es/ensenanza/biblioteca_ele/asele/pdf/1...