\Gliff\, n. [Cf. OE. gliffen, gliften, to look with fear
at.]
1. A transient glance; an unexpected view of something that
   startles one; a sudden fear. [Prov. Eng. & Scot.]
   --Halliwell.
2. A moment: as, for a gliff. [Scot.] --Sir W. Scott.