ọdọọdún noun /ɔ̄.dɔ̄ɔ̄.dṹ/
Definitions
  1. every year, annual
Etymology
Reduplication of ọdún (“year”).
Component words
Source: Wiktionary, where this word is spelled “ọdọọdun”. Reference: en-ọdọọdun-yo-noun-SvvGoUsX