Synonyms for Threepenny (same or very similar meaning)
WordNet sense 1 (having a specified size):
sizedWordNet sense 2 (of trifling worth):
sixpenny, tuppeny, two-a-penny, twopenny, twopenny-halfpennyWordNet sense 3 (relatively low in price or charging low prices):
cheap, inexpensiveFrom the ODE community, based on WordNetadd/edit