Crossword clues for the word: HECTO The word HECTO has appeared as an answer to at least 11 crossword clues on different crossword puzzles. Crossword clues for HECTO Showing 1 to 11 of 11 results Clue(s) 100: Prefix A hundred: Prefix. Deca- : 10 :: ___ : 100 Hundred: Comb. form Hundred: pref. Hundred: Prefix. Metric prefix between deka- and kilo- One hundred (prefix) One hundred: Comb. form One hundred: pref. Prefix for gram or liter