I. | ̷ ̷ˌ ̷ ̷| ̷ ̷ adjective
Etymology: mildew (I) + proof
: resistant to mildew
II. transitive verb
: to make resistant to mildew
mildewproofing sails
I. | ̷ ̷ˌ ̷ ̷| ̷ ̷ adjective
Etymology: mildew (I) + proof
: resistant to mildew
II. transitive verb
: to make resistant to mildew
mildewproofing sails
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012