The long hundred, also known as the great hundred or twelfty,[1] is the number 120 (in base-10 Hindu-Arabic numerals) that was referred to as hund, hund-teontig, hundrað, hundrath, or hundred in Germanic languages prior to the 15th century, and is now known as one hundred and twenty, or six score. The number was translated into Latin in Germanic-speaking countries as centum (Roman numeral C), but the qualifier long is now added because English now uses hundred exclusively to refer to the number of five score (100) instead.
The long hundred was 120, but the long thousand was reckoned decimally as 10 long hundreds (1200).