Sentence:  The <WSD>ingoes</WSD> of a second window in the wing of the Tower at first floor level were found in the east wall. The masonry of one of these <WSD>ingoes</WSD> has been incorporated in the north <WSD>ingo</WSD> of the large slapping at this part of the College foyer. 
Meaning of the word marked with <WSD> tags:  The frame of a door, window, fireplace, or similar structure.