Webster's Revised Unabridged Dictionary · 1913

Bourgeon

Bourgeon ({not transcribed}) , intransitive verb

[Old English burjoun a bud, burjounen to bud, French bourgeon a bud, bourgeonner to bud; compare Old High German burjan to raise.]

To sprout; to put forth buds; to shoot forth, as a branch.
Gayly to bourgeon and broadly to grow. — Sir W. Scott