onbufan, abufan [OE]
above, aboven [MI]
above [ME]
https://www.etymonline.com/word/above#etymonline_v_64
https://www.merriam-webster.com/dictionary/above#dictionary-entry-2
https://quod.lib.umich.edu/m/middle-english-dictionary/dictionary/MED173
https://bosworthtoller.com/116