E*rupt" (?), v. t. [See Eruption.]

To cause to burst forth; to eject; as, to erupt lava. Huxley.

© Webster 1913

E*rupt" (?), v. i. [See Eruption.]

1.

To eject something, esp. lava, water, etc., as a volcano or geyser.

2.

To burst forth; to break out, as ashes from a volcano, teeth through the gums, etc.

When the amount and power of the steam is equal to the demand, it erupts with violence through the lava flood and gives us a small volcano.
H. J. W. Dam.

© Webster 1913