On the contrary. Maltese is an Arabic language; the only one written in the Latin alphabet. Similar to the relationship between English and the old Germanic languages, most of its vocabulary (about 80%) has been replaced by loanwords (in Maltese, mostly from Italian and English), but the most commonly used words are disproportionately Arabic.
There are a few differences between the Maltese-Arabic and English-Germanic relationships. First, while the Germanic substrate of English is itself a blend of Anglo-Saxon and Nordic languages, the Arabic substrate of Maltese is a pretty well-defined Arabic language/dialect - the now extinct Sicilian Arabic, itself a close relative of Tunisian Arabic. Second, while in English the use of Latinate roots is considered high-status and eloquent, in Maltese a higher proportion of Classical/Quranic Arabic words is considered high-status.
There are a few differences between the Maltese-Arabic and English-Germanic relationships. First, while the Germanic substrate of English is itself a blend of Anglo-Saxon and Nordic languages, the Arabic substrate of Maltese is a pretty well-defined Arabic language/dialect - the now extinct Sicilian Arabic, itself a close relative of Tunisian Arabic. Second, while in English the use of Latinate roots is considered high-status and eloquent, in Maltese a higher proportion of Classical/Quranic Arabic words is considered high-status.