GLIFF
Etymology
Noun
gliff (plural gliffs)
(UK, Scotland, dialect) A transient glance.
(UK, Scotland, dialect) An unexpected view of something that startles one.
(UK, Scotland, dialect) A sudden fright.
(UK, Scotland, dialect) A short moment.
(US) A meaningless placeholder word used in certain standardized tests, for example,
Source: Wiktionary
Gliff, n. Etym: [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.
Source: Webster’s Unabridged Dictionary 1913 Edition