Relating to a subject in an appropriate way; closely akin
1) The facts are germane to the dispute.
2) My personal opinion isn't germane to our discussion of the facts of the case.
Middle English germain which means 'having the same parents'.
applicable, apropos, apposite, pertinent, material, pointed, relative, relevant
extraneous, immaterial, impertinent, inapplicable, inapposite, irrelative, irrelevant, pointless