see shoot.
Merriam-Webster Online Dictionary
sprout (verb)intransitive verb
1.
to grow, spring up, or come forth as or as if a sprout
2.
transitive verb
to send out new growth to send forth or up cause to develop - grow
1.
a) - shoot , especially a young shoot (as from a seed or root)
b)
(1) chiefly British - brussels sprout
(2) edible especially from recently germinated seeds (as of alfalfa or mung beans) - sprouts
2.
something resembling a sprout as
a) a young person
b) - scion