thereinto |
among |
As an adverb thereinto
is into that place, state etc.
As a preposition among is
denotes a mingling or intermixing with distinct or separable objects. (See Usage Note at amidst.
wikidiffcom |
thereinto |
As an adverb thereinto is
(archaic) into that place, state etc.
thereinto |
thereunto |
In archaic terms the difference between thereinto and thereunto
is that
thereinto is into that place, state etc while
thereunto is thereto.
whereinto |
thereinto |
As adverbs the difference between whereinto and thereinto
is that
whereinto is into which while
thereinto is into that place, state etc.
hereinto |
thereinto |
As adverbs the difference between hereinto and thereinto
is that
hereinto is into this circumstance, matter, place, or situation; into this while
thereinto is into that place, state etc.