Sentence:  ... Then quoth Hamtheow, etc.: 'We shall never come back to our mother [when we have slain the King of Goths]. Thou shalt drink the <WSD>arval</WSD> for us all together, for Swanhild and thy sons.' 
Meaning of the word marked with <WSD> tags:  The ale served at such a wake, the drinking of which was a ritually significant act in Norse culture.