honorificabilitudinitatibus UK /ˌɒn.əˌɹɪf.ɪ.kəˌbɪl.ɪˌt(j)uː.dɪ.nɪˈteɪ.tɪ.bəs/US /ˌɑn.əˌɹɪf.ɪ.kəˌbɪl.əˌt(j)u.dɪ.nɪˈteɪ.tɪ.bəs/ noun2 •(no longer used, rare) Used as a person's title or the name of a thing meaning "honourable one", or simply as a very long word to indicate prolixity.For griefes sake keepe him out, his discourse is like the long vvord, Honorificabilitudinitatibus: a great deale / Of sound and no sence: […] — 1605 •(no longer used, rare) The state of being able to achieve honours; honourableness.