scaccarium

From scaccus (“shah, king”) +‎ -ārium (“place for”).

• (Classical) IPA^(key): /skakˈkaː.ri.um/, [s̠käkˈkäːriʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /skakˈka.ri.um/, [skäkˈkäːrium]

scaccārium n (genitive scaccāriī or scaccārī); second declension

1. (Medieval Latin) chessboard
2. (Medieval Latin, metonymically) exchequer

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).

• Old French: eschekier, escheker, eschequier, eskekier
  • Middle French: eschiquier
    • French: échiquier
  • Norman: êchitchi
  • → Middle English: escheker, cheker (see there for further descendants)