2 And both full loath in darkness to debate;
debate > fight
3 Yet both full lief him lodging to have lent,
full lief > [were] very willing ("lief" used antithetically to "loath", as at 309.13:8)
4 And both full lief his boasting to abate; 5 But chiefly Paridell his heart did grate
Paridell his > Paridell's grate > grind (cf. 101.19:6)
6 To hear him threaten so despitefully,
despitefully > scornfully
7 As if he did a dog to kennel rate,
rate > drive (by scolding)