I.to love knowledge, pursue it, philosophise, Lat. philosophari, Hdt., Thuc., etc.; φιλοσοφοῦντά με δεῖ ζῆν, says Socrates, Plat.
2.to teach philosophy, Isocr.
II.c. acc. to discuss philosophically, to investigate, study, Lat. meditari, Isocr.; φιλοσοφίαν φιλοσοφεῖν to pursue philosophy, Xen.
2.generally, to study a thing, Isocr.