[knv]

And alcohol of course.

[shn]

And for the modern day drug sold at every corner a.k.a. coffee

[madaxe]

Which contains the alkaloid, caffeine!

[contingencies]

But surely you jest! Of course, you allude to hashish and opium.

[taejo]

No, the word "alcohol" (like many English words starting with "al") is of Arabic origin.

[tripzilch]

alright then!

[eli_gottlieb]

Actually, al-cohol roughly means "the blue", referring to the blue tint of many alcohol-based make-ups used in the Near East in ancient and medieval times.

[madaxe]

The word, yes, but the etymology is more related to the idea of alcohol being an 'essence' of something.