Term Creation: __math

The Ode Less Traveled presented a term that stuck in my head:

 ...awaken the poet that has always lain dormant within. It is never too late. We are all opsimaths. Opsimath, noun: one who learns late in life.

Fry is so inspiring, I've taken to using the term, but as Adam reminds me, at 31 I'm hardly "late in life" (though rather late for an ambitious writer, I reply in my head). Last night in the shower I realized that what is called for is a term meaning "one who learns throughout life." One thinks of the term "lifelong learning" from contemporary university extension schools. So what is the Greek word that means "lifelong" that I can use to replace οψε (opse), which means "late?" When I find the term, I can just tack it on to "μανθανω (manthano)" to produce ___math.

Apparently Cato the Elder learned Greek at age 80. So it's okay that I haven't studied Japanese yet, at age 31!

To be answered...