Agreed-___ time

• On top
• "___ the Roof," 1963 tune
• Word with reflection or my word
• At the summit of
• Nursery rhyme word
• Supported by
• First word said by a referee after reviewing a challenge, often

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
early 12c., from Old English uppan (prep.) "on, upon, up to, against," from up (adv.) + on (prep.); probably influenced by Scandinavian sources such as Old Norse upp a .

Wikipedia Word definitions in Wikipedia