word book to learn other POS simultaneously ?

hi
tell me the word book, which shows every POS of each word.
for example

explain(verb)
explanation(noun)
explanatory(adjective)
explicable(adjective)

like above, I want to know all POS of each word, simultaneously.
but even most of dictionary don't show no other POS else itself.

for example, when I search, "explain", every dictionary(including online) only shows "explain" as the verb commonly used.
no indication about other POS, like "explanation" "explanatory" "explicable".

I can see only "explain" as result on dictionary.

(only "Oxford Advanced learners dictionary" and sometimes
"webstar" could closely show the way how I want,
those 2 dictionary told me other POS as "word family" about each word, but it was limited very little words, and even not the result of every word)
that was not useful totally.

I don't understand why every word book only show, indicate some of POS, like verb as representative.

I need word book rather than dictionary to study, know english words,
but word books sold in market generally, show only each word independently,

so, every time I have to leave rest of the other POS unknown
till when I face them someday and search it by myself on dictionary.
it takes too much time....

I mean, when I face "proliferate", I want to know also
"proliferative" "prolific" "prolificacy" "prolifically" "prolificity" "prolificness" on that time.
then I can learn everything POS simultaneously.

anyone know something word books which is written that way ??