Found 2 items, similar to eighthly.
English → English (WordNet) Definition: eighth eighth adj : coming next after the seventh and just before the ninth in position [syn: 8th] eighth n 1: position eight in a countable series of things 2: an eighth part [syn: one-eighth]
English → English (gcide) Definition: Eighthly Eighthly \Eighth"ly\, adv. As the eighth in order. [1913 Webster]