The synonym for donned is to put on.
Donned means put on, as in "She donned her cap," which means she put on her cap.
Jimmy donned his cap and walked to the market.
Candidates should put on their academic gown first when preparing for a General Certificate of Education (GCE) exam. This is followed by the cap and hood, if applicable. It is important to ensure that the gown is worn correctly and neatly before entering the examination hall.
To 'don' is to put on, so 'donned' is the past tense form of the verb 'don' "I donned my warm coat when I saw the wind was blowing outside" Donned is a past tense verb.
She donned her hat and gloves, ready to go out in the wind.
Ralph donned his cap and cape and went to feed the horses.
Spirits were high as we all donned our pink t-shirts and decorated the bus with banners and ballons.
Drop to the ground, don protective mask (if not donned already)
Don means put on. Donned would be the past tense of that.As he donned the national jersey he felt the pride swell up inside of him.The knight donned his armour and prepared for battle.
trousers
Put on, as clothing.
John Casey