Sentence:  ["Et ſi feoffati illi warrantum, vel medium not habeant."] That is to say, if they have neither one to warrant by ſpeciall graunt, nor any meſne by tenure which ought to <WSD>acquit</WSD> them, "tunc omnes illi feoffati pro portione ſua contribuant, &c." 
Meaning of the word marked with <WSD> tags:  To discharge (for example, a claim or debt); to clear off, to pay off; to fulfil.