to (an extent); up to; so far as; even
Emphatic form of まで, used to stress the extent or limit of something. Often implies 'even to the point of' or 'as far as'.
See also: まで
He tried to protect his family, even at the cost of his own life.
there is no need to ...; it should hardly be necessary to ...
Used in the pattern ...までもない, meaning 'it is not necessary to ...' or 'there is no need to ...'. Often follows a verb in dictionary form.
See also: までもない
even if there is no need to ... (at least ...)
Used in the pattern ...ないまでも, meaning 'even if not ... at least ...'. It sets a lower bound or a minimal expectation.
I don't want to succeed even if it means doing such a thing.
Needless to say, health is important.
There's probably no need to explain it in detail.
Even if not every day, you should exercise at least once a week.
Even if it's not perfect, it's a pretty good result.
まで is the plain particle for 'until/up to', while までも adds emphasis, suggesting 'even to the point of' and appearing in set patterns like ～までもない.
Compound of まで (until, up to) + も (also, even). The combination adds emphasis, extending the limit or extent.