bespoke > spoke
5 "What voice of damned ghost from Limbo-lake,
Limbo-lake > (The pit of hell; Limbo is the region at the edge of hell where the unbaptized are confined; "lake" comes to us via Latin from the Greek lakkos, = pit, hollow, hole (filled with water or not))
6 Or guileful sprite wandering in empty air 7 (Both which frail men do oftentimes mistake),
which > [of which] oftentimes > frequently, often mistake > imagine erroneously; or: mislead (so glossed by some editors, though this sense is not mentioned in OED)
8 Sends to my doubtful ears these speeches rare,
doubtful > fearful, apprehensive; doubting rare > unusual, strange
9 And rueful plaints, me bidding guiltless blood to spare?"
plaints > lamentations
102.33