means A thick, sweet liquid made by dissolving sugar in water or by concentrating the juice of a plant, fruit, or tree.

from From medieval Latin 'siropus' or 'siruppus', which came from Arabic 'sharab' (or 'shurb'), meaning a drink or beverage — the same root that gives us 'sherbet' and 'sorbet'. Arabic medicine and confectionery passed sweet medicinal drinks westward, and the word arrived in English through Old French 'sirop'. So the trail runs from an Arabic word for 'something you drink' through the apothecaries of the Mediterranean to your breakfast table.