'abaciscus' originates from Latin, specifically the word 'abaciscus', where 'abacus' meant 'a board or slab'.

'abaciscus' changed from the Latin word 'abaciscus' and eventually became the modern English word 'abaciscus'.

Initially, it meant 'a small board or slab', but over time it evolved into its current meaning of 'a small tile used in mosaic work'.