n. 羽毛初长的雏鸟,刚会飞的幼鸟,无经验的人

Fledge \Fledge\, v. t. & i. [imp. & p. p. {Fledged}; p. pr. &
vb. n. {Fledging}.]
1. To furnish with feathers; to supply with the feathers
necessary for flight.

The birds were not as yet fledged enough to shift
for themselves. --L'Estrange.

2. To furnish or adorn with any soft covering.

Your master, whose chin is not yet fledged. --Shak.