ẹ̀rọ ìṣírò noun /ɛ̀.ɾɔ̄ ì.ʃí.ɾò/
Definitions
  1. calculator
Etymology
From ẹ̀rọ (“machine”) + ì- (“nominalizing prefix”) + ṣírò (“to calculate”), literally “machine that calculates”.
Component words
ẹ̀rọmachineì-nominalizing prefixṣíròto calculate
Source: Wiktionary, where this word is spelled “ẹrọ iṣiro”. Reference: en-ẹrọ_iṣiro-yo-noun-0tSlknAL