loqu-, -loquence, -loquent, -loquently, -loquy, -iloquent, -iloquently

(Latin: talk, speak, say)

This loqu unit is directly related to the "talk, speak, say, word, speech" locu- family unit.

omniloquent
Being capable of talking about any and all subjects.
pauciloquence (s) (noun), pauciloquences (pl)
A situation in which the use of the fewest number of words are made to make a point or to answer a question, etc.
pauciloquent (adjective), more pauciloquent, most pauciloquent
A reference to using a minimal amount of information during a speech or in a written document.
pauciloquy (s) (noun), pauciloquies (pl)
A speech or conversation of very few words; using the fewest possible words to make a point.
pectoriloquy
1. Voice sounds of increased resonance heard through the chest wall.
2. Transmission of the voice sound through the pulmonary structures so that it is unusually audible on auscultation of the chest, indicating either consolidation of the lung parenchyma or the presence of a large cavity.
3. The distinct articulation of the sounds of a patient's voice, heard when applying the ear to the chest in auscultation.

It usually indicates some morbid change in the lungs or pleural cavity.

planiloquent, planiloquence
Speaking plainly.
pleniloquent, pleniloquence
Full of talk; excessive talking.
polyloquent
Talking about many things.
Res ipsa loquitur.
The matter speaks for itself.

Another translation is, "The thing itself speaks." In a trial involving an accident, the damage is evident; the defendant must prove that the accident was not due to negligence on his part.

sanctiloquence
Speaking solemnly (reverently, devoutly) about sacred or holy things.
sanctiloquent
1. Discussing or delivering a formal treatment of holy or sacred topics in a speech or writing; such as, a sermon or a dissertation.
2. A presentation about heavenly or holy things; usually, in a sacred manner.
sialoquent, sialoquence
Spraying saliva when speaking.
I once knew a fellow named Fritz,
Who spoke with conspicuous spritz.
Whatever he’d say
Came out with a spray—:
His sialoquent spurts gave me fits!

—Chloe S. Yarmouth, as seen in There's a Word for it! by Charles Harrington Elster
soliloquacious (adjective)
Soliloquizing at great length.
soliloquacious
Prone to soliloquize or to talk to oneself.
soliloquacity
Soliloquizing, or talking to oneself, at great length.
Cross references of word families related directly, or indirectly, to: "talk, speak, speech; words, language; tongue, etc.": cit-; clam-; dic-; fa-; -farious; glosso-; glotto-; lalo-; linguo-; locu-; logo-; mythico-; -ology; ora-; -phasia; -phemia; phon-; phras-; Quotes: Language,Part 1; Quotes: Language, Part 2; Quotes: Language, Part 3; serm-; tongue; voc-.