fíofío noun /fíō.fíō/
Definitions
  1. very tall; high; lofty
    igi gíga fíofío a very tall tree
    Ó lọ sókè fíofío It went high up
Source: Wiktionary, where this word is spelled “fiofio”. Reference: en-fiofio-yo-noun-c89bqE3x