Near rhymes are words with similar but not identical sounds.

Example: If love is like a bridge
or maybe like a grudge,
and time is like a river
that kills us with a shiver,
then what have all these mornings meant
but aging into love?
What now is straight must have been bent;
what now is whole must have been rent.
My hand is now your glove.
(Obviously found online: http://literarydevices.net/half-rhyme/

Near Rhyme