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Glayva is a liqueur produced in Leith, bi Whyte and Mackay Ltd. It is marketit wi the slogan 'baist liqueur in the warld'.

Glayva is made frae a blend o aged Scotch whiskies, yerbs, anise, cloves, awmonds, heather honey, an citrus fruits. It haes a deep gowd colour an a distinctive flavour.

Its name is an anglicised spellin o Glè Mhath, which means 'very guid' in Scots Gaelic.