gun = allow/bestow on
From the verb "gunnen". Here are the conjugations. In the second and third person is another DDW.
jij (je)/u gunt
hij/zij (ze)/het gunt
zij (ze) gunnen
In "gunnen" (for example "ik gun het jou" - "I bestow it on you") is the feeling of complete confidence that the thing that is 'received' is deserved, like allowing someone their holiday because it's the first one they've been able to afford in five years, or donating a large sum to a deserving charity.