interpose

verb

1
to insert between other elements
She interjected clever remarks
2
introduce
God interposed death
3
be or come between
An interposing thicket blocked their way
4
get involved, so as to alter or hinder an action, or through force or threat of force
Why did the U.S. not intervene earlier in WW II?

Also useful for “interpose”:Unscrambler— Rearrange the letters in “interpose”