ìdájí noun /ì.dá.d͡ʒí/
Definitions
  1. dawn, early in the morning, daybreak idiomatic
Etymology
From ì- (“nominalizing prefix”) + dá (“to be alone in doing something”) + jí (“to wake up”), literally “The act of waking up alone (because most people are sleeping at this time)”.
Component words
Source: Wiktionary · etymology 2, where this word is spelled “idaji”. Reference: en-idaji-yo-noun-CDJAzzdZ