*tolkw-

"a roundabout way of speaking, studied indirection or evasiveness in speaking or writing," c. 1400, from Latin circumlocutionem (nominative circumlocutio) "a speaking around" (the topic), from circum "around, round about" (see circum-) + locutionem (nominative locutio) "a speaking," noun of action from past participle stem of loqui "to speak" (from PIE root *tolkw- "to speak"). A loan-translation of Greek periphrasis (see periphrasis). Related: Circumlocutionary.

c. 1600, "conversation, dialogue" (a sense now obsolete), from Latin colloquium "conference, conversation," literally "a speaking together," from com- "together" (see com-) + -loquium "speaking," from loqui "to speak" (from PIE root *tolkw- "to speak"). Also as a legal term; meaning "a meeting for discussion, assembly, conference, seminar" is attested by 1844.