† outscourn.

Origin: Formed within English, by derivation. Etymons: out- prefix, scour n.²

Etymology: < out- prefix + scour n.², after to scour out (see scour v.² 5a).

Obsolete. rare.

The action of scouring out a channel.

ΘΚΠ

the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun] > cutting channel or hole

stream-cutting1626

gorging1833

outscour1883

incision1906

gullying1928

1883 G. K. Gilbert in Nature 18 Jan. 261/2 The natural rate of denudation by means of the outscour of rivers.

This entry has been updated (OED Third Edition, December 2004; most recently modified version published online June 2018).

单词	outscour
释义	† outscourn. Origin: Formed within English, by derivation. Etymons: out- prefix, scour n.² Etymology: < out- prefix + scour n.², after to scour out (see scour v.² 5a). Obsolete. rare. The action of scouring out a channel. ΘΚΠ the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun] > cutting channel or hole stream-cutting1626 gorging1833 outscour1883 incision1906 gullying1928 1883 G. K. Gilbert in Nature 18 Jan. 261/2 The natural rate of denudation by means of the outscour of rivers. This entry has been updated (OED Third Edition, December 2004; most recently modified version published online June 2018). < n.1883
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