Found the following hamletworks.org entries referring to line 1278

View Commentary Note for 1277-8
1277-8 Ham. Then you liue about her wast, or in the mid|dle of her {fauours.} <fauour?> 

View Material Textual Note for 1277-8
1277-8 Ham. Then you liue about her wast, or in the mid|dle of her {fauours.} <fauour?>