The word according to the dictionary

Latin

loquor (present infinitive loquī or loquier, perfect active locūtus sum); third conjugation, deponent

to say, speak, tell, talk, utter
Synonyms: aio, effor, for, dīcō, inquam, alloquor, oro

vīsne mēcum latīnē loquī? ― Do you want to speak Latin with me?

rēs ipsa loquitur. ― The matter speaks for itself.
- 16 BCE, Ovid, The Loves 1.11.15:
  Dum loquor, hōra fugit.
  Even as I speak, time fleeteth way.
- c. 54 CE, Seneca the Younger, Phaedra:
  Cūrae levēs locuntur, ingentēs stupent.
  Trivial concerns talk, great ones are speechless.
to declare, speak, or state more formally as in a legal context or in defense of someone or something
- 29 BCE – 19 BCE, Virgil, Aeneid 4.337:
  “Prō rē pauca loquar. .”
  “I shall state a few about the matter.”

Conjugation of loquor (third conjugation, deponent)

indicative		singular				plural
indicative		first	second		third	first	second		third
active	present	loquor	loqueris, loquere		loquitur	loquimur	loquiminī		loquuntur
	imperfect	loquēbar	loquēbāris, loquēbāre		loquēbātur	loquēbāmur	loquēbāminī		loquēbantur
	future	loquar	loquēris, loquēre		loquētur	loquēmur	loquēminī		loquentur
	perfect	locūtus + present active indicative of sum
	pluperfect	locūtus + imperfect active indicative of sum
	future perfect	locūtus + future active indicative of sum
subjunctive		singular				plural
subjunctive		first	second		third	first	second		third
active	present	loquar	loquāris, loquāre		loquātur	loquāmur	loquāminī		loquantur
	imperfect	loquerer	loquerēris, loquerēre		loquerētur	loquerēmur	loquerēminī		loquerentur
	perfect	locūtus + present active subjunctive of sum
	pluperfect	locūtus + imperfect active subjunctive of sum
imperative		singular				plural
imperative		first	second		third	first	second		third
active	present	—	loquere		—	—	loquiminī		—
active	future	—	loquitor		loquitor	—	—		loquuntor
non-finite forms		infinitive				participle
non-finite forms		active		passive		active		passive
present		loquī, loquier¹		—		loquēns		—
future		locūtūrum esse		—		locūtūrus		loquendus
perfect		locūtum esse		—		locūtus		—
future perfect		locūtum fore		—		—		—
perfect potential		locūtūrum fuisse		—		—		—
verbal nouns		gerund					supine
		genitive	dative		accusative	ablative	accusative		ablative
		loquendī	loquendō		loquendum	loquendō	locūtum		locūtū

¹The present passive infinitive in -ier is a rare poetic form which is attested.

^ De Vaan, Michiel (2008) “loquor, loquī”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, pages 348-9

“loquor”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“loquor”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
loquor in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎, London: Macmillan and Co.
- to be unable to speak for emotion: prae lacrimis loqui non posse
- the matter speaks for itself: res ipsa (pro me apud te) loquitur
- to make contradictory, inconsistent statements: pugnantia loqui (Tusc. 1. 7. 13)
- (1) to speak vehemently, passionately; (2) to speak pompously, boastfully: magnifice loqui, dicere
- (1) to speak Latin, (2) to speak good Latin (also bene latine), (3) to express oneself clearly: latine loqui (Brut. 45. 166)
- to speak the Greek language: graece or graeca lingua loqui
- to think one thing, say another; to conceal one's opinions: aliter sentire ac loqui (aliud sentire, aliud loqui)
- to speak personally to..: coram loqui (cum aliquo)
- speak up, please: clarius loquere