adverb
a very short while ago; very early
Archaic adverb meaning 'just a moment ago' or 'very early in the morning'. Not used in modern conversation; found in classical or literary texts.
まだきに起きて庭を歩く。
I got up very early and walked in the garden.
まだきの出来事を思い出す。
I recall an event from a very short while ago.
The exact derivation is uncertain; it may be related to まだ (still, yet) with an old suffix, but the historical origin is unclear.