My Dear Mr Bingley, could you recommend a good place to start learning greek?(on line)

i noticed last year, reading--as i compulsively do--a label(on a skein of yarn) that i understood the greek (OK, so it modern greek) words for wool and polyester, and other components of the yarn..(D'oh--polyester is identical.. (well substitute pi for P, and so on.. but really the same in substance)

i would like to learn more.. (and will in a lackadasical fashion)


my other obsession