I. adjective Date: 1832 occurring or appearing three times a week, occurring or appearing every three weeks, ~ adverb II. noun (plural -lies) Date: 1838 a ~ publication
TRIWEEKLY
Meaning of TRIWEEKLY in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012