biloogh [MI]
below [ME]
belò‚
https://www.etymonline.com/word/below#etymonline_v_8292
https://www.etymonline.com/word/be-#etymonline_v_8193
https://www.etymonline.com/word/low#etymonline_v_14561
https://quod.lib.umich.edu/m/middle-english-dictionary/dictionary/MED4642