Translation of an ayah from Suratin Nisaa' - 2

Please translate the following from Suratin Nisaa' searching any new verbs/nouns that have not yet been encountered. Please provide any additional explanation where you see necessary.


وَلَا تَنكِحُوا مَا نَكَحَ آبَاؤُكُم مِّنَ النِّسَاءِ إِلَّا مَا قَدْ سَلَفَ


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وَلَا تَنكِحُوا مَا نَكَحَ آبَاؤُكُم مِّنَ النِّسَاءِ إِلَّا مَا قَدْ سَلَفَ

وَلَا تَنكِحُوا - And do not Marry (m3+)
مَا - what
نَكَحَ - he married
آبَاؤُكُم - your(m3+) Fathers(p) (i.e. what your father married)
مِّنَ- from
النِّسَاءِ - the women
إِلَّا - except
مَاقَدْ - [to] terminate what
سَلَفَ - [has already] preceded

Translation: And do not Marry the Women your Fathers have married except to terminate what has already preceded