The Spanish word 'albahaca' (meaning 'basil') traces its roots to the Arabic influence on the Iberian Peninsula. It comes from Andalusi Arabic 'alḥabáqa' (meaning 'basil'), which itself derives from Classical Arabic 'ḥabaqah', referring to an aromatic plant. The 'al-' at the beginning of the word is the Arabic definite article (similar to 'the' in English) that was preserved as the word entered Spanish. The internal sound changes from Arabic to Spanish (ḥ → h, q → c) are typical of how Arabic words were adapted into Spanish pronunciation patterns during the medieval period.

While 'albahaca' itself is a relatively common Spanish word for basil, there aren't many simpler or more common Spanish words that share its Arabic etymology. This is because it came into Spanish as a specific botanical term from Arabic, rather than being part of a larger word family in Spanish.

There aren't any common English words directly related to 'albahaca' since it comes from Arabic rather than the Latin/Germanic roots that English typically shares with Spanish. English gets its word 'basil' from a different source - the Greek 'basilikos' meaning 'royal', as basil was considered the 'king of herbs'.