Philomath \FIL-uh-math\ , noun;
1. A lover of learning; a scholar
This word dates to the early 1600's and comes from Ancient Greek ϕιλομαθής ("fond of learning"). It is also related to philomathematic which entered the language slightly later.
Today's word and the first definition were both taken from Dictionary.com's 'Word of the Day' for Tuesday, February 8
Etymologies come from the Oxford English Dictionary and/or Etymonline.com