a. Pros. [f. TRI- + MORA1 3 + -IC.] Containing three moræ; having the length of three short syllables.
1901. P. Giles, Manual Compar. Philol., § 271 (ed. 2), 230. In the difference of accentuation between οἴκοι and οἵκοι we have probably traces of the difference between original dimoric and trimoric diphthongs. Final diphthongs when dimoric allow of the circumflex on a foregoing long syllable; when trimoric they do not.
