While one question could be about what does bi- stand for, my question is what better one word is there for 6 months like daily, weekly, monthly, quarterly. My guess it there might be one that i. Is there a fourth word in this series: Weekly, biweekly, triweekly, ?

Understanding the Context

If not, and i had to coin a word, then would quadweekly, quadriweekly, or some other word be more etymologically. What do lengths of time with the bi prefix mean? I have understood bicentennial as once every two hundred years, but biannual as meaning twice a year. Do biweekly and bimonthly mean.

Key Insights