The term FOOT PREFIX refers to words that begin with a prefix related to the word 'FOOT'. The four solutions for this crossword are PEDI (4 letters), PED (3 letters), PEDO (4 letters), and PODO (4 letters). PEDI is derived from the Greek word 'pedon' meaning 'GROUND' or 'EARTH', PED is derived from the Latin word 'pes' meaning 'FOOT', PEDO is derived from the Greek word 'podos' meaning 'FOOT', and PODO is derived from the Greek word 'pous' meaning 'FOOT'.