noun
semester
sih-MES-ter/sɪˈmestər/
One of two main academic terms in a school year.
The selected band marks one semester of the academic year.

Etymology
The components mean “six months,” originally describing a half-year course. That half-year division connects the word to one of the two main terms in an academic year.
In context
we told Harvard that we were taking one semester off and and then we told Harvard that we were taking another semester off and then a year off