Rare, transitive; to make imperfect or to impair.
Translations
altérerRare et transitif : rendre moins parfait, détériorer légèrement. Excessive handling had imperfected the once-pristine manuscript.
Des manipulations excessives avaient altéré le manuscrit autrefois impeccable.
abîmerSens plus concret : endommager, détériorer. Definitions
(rare, transitive) To make imperfect; to mar or spoil the perfection of. Excessive handling had imperfected the once-pristine manuscript.