abbr.The current month.


The abbreviation for 'instant' was commonly used in 19th-century letters to mean 'in the same month.' For example, an individual replying to a letter sent the same month might write, 'In your letter of the 12th inst.' The abbreviations ult (ultimo) was used for 'the previous month', and prox (proximo) was used for 'the next month.' Garner's Modern American Usage describes the abbreviations as 'commercialese.'