boarded > drew near to and addressed, accosted

2 Saying, he now had bolted all the flour,

bolted > sifted; examined by sifting, searched (proverbial)

3 And that it was a groom of base degree,

groom > fellow degree > rank

4 Who of my love was partner paramour:

paramour > (Adv.) in sexual love

5 Who used in a darksome inner bower

used > was accustomed, was in the habit of bower > chamber

6 Her oft to meet: which better to approve,