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Definition: Payment of trade union subscription fees by way of a deduction by the employer from the employee’s wages.
Notes: Gellid hefyd ddefnyddio’r ffurf fer “didynnu drwy’r gyflogres”. Argymhellir defnyddio’r ffurf hir pan fydd y term yn ymddangos gyntaf mewn dogfen, gyda'r ffurf fer ar ei ôl mewn cromfachau. Wedyn, gellid defnyddio’r ffurf fer drwy weddill y ddogfen.
