Separable.
(2) Following a verb, and being really a part of the verb. This use needs to be watched closely, to see whether the preposition belongs to the verb or has a separate prepositional function. For example, in the sentences, (a) "He broke a pane from the window," (b) "He broke into the bank," in (a), the verb broke is a predicate, modified by the phrase introduced by from; in (b), the predicate is not broke, modified by into the bank, but broke into—the object, bank.
Study carefully the following prepositions with verbs:—
Considering the space they took up.—Swift.
I loved, laughed at, and pitied him.—Goldsmith.
The sun breaks through the darkest clouds.—Shakespeare.
They will root up the whole ground.—Swift.
A friend prevailed upon one of the interpreters.—Addison
My uncle approved of it.—Franklin.
The robber who broke into them.—Landor.