From Middle English scot, scott, from Old English sċot, sċott, sċeot, ġesċot (“contribution; payment; tax; fine”), cognate with Old Norse skot, from Proto-Germanic *skutą (“that which is thrown or cast; projectile; missile”), related to English shoot. Later influenced by Old French escot (Modern écot), itself of Germanic origin. Doublet of shot.
Meanings
(UK, historical) A local tax, paid originally to the lord or ruler and later to a sheriff.
The black fellows were in a very savage mood. […] Mr. Lawson, having heard that the up-creek blacks were "in a scot," and fearing that the youngsters might fall into their hands, had then started with his little party in pursuit. 1869, Richard Rowe, The Boy in the Bush: