2 roots met- in LIV ? or the same one?

There are 2 roots met- in LIV :

met-1
Lat. meto: 'to reap'

met-2
Slav. mes~ti, metati 'to throw'


My question is here: Is not one and the same root here?


Thanks for your feedback,
Marius


P.S.: Also the link with the Greek metron is for sure strange ...