Notch \Notch\, n. [Akin to nock; cf. OD. nock, OSw. nocka. Cf. Nick a notch.]

1. A hollow cut in anything; a nick; an indentation.

And on the stick ten equal notches makes. --Swift.

2. A narrow passage between two elevation; a deep, close pass; a defile; as, the notch of a mountain.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Notch \Notch\, v. t. [imp. & p. p. Notched; p. pr. & vb. n. Notching.]

1. To cut or make notches in; to indent; also, to score by notches; as, to notch a stick.

2. To fit the notch of (an arrow) to the string.

God is all sufferance; here he doth show No arrow notched, only a stringless bow. --Herrick.

Source: Webster's Revised Unabridged Dictionary (1913)