Made light of it (αμελησαντες). Literally, neglecting, not caring for. They may even have ridiculed the invitation, but the verb does not say so. However, to neglect an invitation to a wedding feast is a gross discourtesy.

One to his own farm (ος μεν εις τον ιδιον αγρον) or field,

another to his merchandise (ος δε επ την εμποριαν αυτου) only example in the N.T., from εμπορος, merchant, one who travels for traffic (εμπορευομα), a drummer.