sett

[set] /sɛt/
noun
1.
Also called pitcher. a small, rectangular paving stone.
2.
Also called stake. a hand-held tool that is struck by a hammer to shape or deform a metal object.
3.
Also, set. the distinctively colored pattern of crisscrossed lines and stripes against a background in which a Scottish tartan is woven.
Origin
1870-75; variant of set
Examples from the web for sett
  • The colors in the sett all have significance to the state.
British Dictionary definitions for sett

sett

/sɛt/
noun
1.
a small rectangular paving block made of stone, such as granite, used to provide a durable road surface Compare cobblestone
2.
the burrow of a badger
3.
  1. a square in a pattern of tartan
  2. the pattern itself
Word Origin
C19: variant of set1 (n)
Word Origin and History for sett
n.

see set (n.1).

The extra t is an arbitrary addition in various technical senses, from a lawn-tennis to a granite set. Each class of persons has doubtless added it to distinguish the special sense that means most to it from all others ; but so many are the special senses that the distinction is now no more distinctive than an Esq. after a man's name, & all would do well to discard it. [Fowler]