Парнишечко and ростить

What is the meaning of the following two words?
They are not in any of my dictionaries.

Парнишечко

and

ростить

Thanks. :)

парнишечка/парнишка/парень means a young man.
ростить is a "peasant" form of "растить" - to grow/cultivate.

Apparently, 'парнишечко' is a vocative of 'парнишечка'.