variant of glosso-: glottology.

Origin of glotto-

< Greek (Attic) glōtto-, combining form of glôtta; see glottis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for glotto-

word-forming element meaning "language," from Attic Greek glotto-, from glotta "tongue, language" (see gloss (n.2)).

Online Etymology Dictionary, © 2010 Douglas Harper