[NERATIUS libro secundo membranarum. ] §25.1.15.prQuod dicitur impensas, quae in res dotales necessario factae sunt, dotem deminuere, ita interpretandum est, ut, si quid extra tutelam necessariam in res dotales impensum est, id in ea causa sit: nam tueri res dotales uir suo sumptu debet.
[NERATIUS, Parchments, Book 2] As for the saying that expenses which have been necessarily made on dotal property diminish the dowry, it must be interpreted in such a way that, if any expense has been made on dotal property beyond necessary maintenance, it is in that category; for a husband ought to maintain dotal property at his own expense.
alioquin tam cibaria dotalibus mancipiis data et quaeuis modica aedificiorum dotalium refectio et agrorum quoque cultura dotem minuent: omnia enim haec in specie necessariarum inpensarum sunt.
Otherwise, both the food given to dotal slaves and any moderate repair of dotal buildings and also the cultivation of fields will diminish the dowry; for all these are in the category of necessary expenses.
sed ipsae res ita praestare intelleguntur, ut non tam inpendas in eas, quam deducto eo minus ex his percepisse uidearis.
But the things themselves are understood to yield in such a way that you do not so much seem to have expended on them, as to have received less from them by that amount being deducted.
quae autem impendia secundum eam distinctionem ex dote deduci debeant, non tam facile in uniuersum definiri, quam per singula ex genere et magnitudine inpendiorum aestimari possunt.
What expenses, however, ought to be deducted from the dowry according to this distinction cannot be so easily defined in general as they can be estimated in detail based on the nature and magnitude of the expenses.