antepenultime

noun3

1. •
   (rare) Antepenultimate position.

   • In antepenultime the non-neutral vowels /a/, /i/, /u/ alternate with the neutral shorter /ə/, and the neutral vowel in antepenultime and penultime alternates with zero. — 1986
2. •
   (rare) Any thing occurring as the antepenultimate item in a series.

   • Mandibles with 4 teeth decreasing in size from the apical teeth, the antepenultime (subbasal) smallest. — 2004
3. •
   Synonym of antepenult.

   • In polysyllables the penultime is accented if the syllable be long, but in all other cases the accent is laid upon the antepenultime. — 1860