Lately I’ve come across rising used in an unfamiliar way:
A rising xxxx — about to be a _________.
“President Barack Obama’s daughters, Malia and Sasha, enrolled at Sidwell in 2009. Malia graduated in 2016, took a gap year, and will attend Harvard University in the fall. Sasha is a rising junior.”
A dictionary offers this as its last entry:
approaching (a specified age).
“she was thirty-nine rising forty”
Is this new? Or, most likely, am I just out of touch with linguistic evolution during the past few centuries?