ọ̀dúndún noun /ɔ̀.dṹ.dṹ/
Definitions
  1. Any of several species of plants known for their calming properties, including Kalanchoe pinnata, Emilia fosbergii, Kalanchoe crenata, and Tabernaemontana pachysiphon.
    èyí l'ó mú kí Olódùmarè fọ̀dúndún ṣọba ewé, Ó mú tẹ̀tẹ̀ ṣe ọṣọ̀run-un rẹ̀; Ó mú òkun ṣe ọba omi, Ó mú ọ̀sà ṣe ọṣọ̀run-un rẹ This is the reason Olodumare made the odundun plant the king of all the leaves, and he made the tete plant its second in command; he made the ocean the king of the oceans, and he made the lagoon its second in command
Source: Wiktionary, where this word is spelled “ọdundun”. Reference: en-ọdundun-yo-noun-SBmxdlet