The verbs דלק , בער , יצת (ignite/burn) indicate the quality of lighting and burning while kindling a light and igniting it or strengthening a fire with wood. And several languages come with respect to this.

But the verb שרף (burn) indicates the burning of the object itself and also comes on objects having no light clinging to them and are only burned via wood and the like.

And there is a particular difference between שרף (burn) and אכל (consume): The verb אכל indicates the action of the fire itself when it consumes and destroys the physical matter, while the verb שרף indicates the action of the person who causes the burning of the wood.