Quo

[kwoh] /kwoʊ/

verb (used with object), Archaic.
1.
.
[in stah-too kwoh; English in stey-tyoo kwoh, stach-oo] /ɪn ˈstɑ tu ˈkwoʊ; English ɪn ˈsteɪ tyu ˈkwoʊ, ˈstætʃ u/
adverb, Latin.
1.
in the state in which (anything was or is).
[loh-koo s in kwoh; English loh-kuh s in kwoh] /ˈloʊ kʊs ɪn ˈkwoʊ; English ˈloʊ kəs ɪn ˈkwoʊ/
noun, Latin.
1.
the place in which; the very place; the scene of the event.
[kwid proh kwoh] /ˈkwɪd proʊ ˈkwoʊ/
noun, plural quid pro quos, quids pro quo for 2.
1.
(italics) Latin. one thing in return for another.
2.
something that is given or taken in return for something else; substitute.
[kwoh ah-ni-moh; English kwoh an-uh-moh] /kwoʊ ˈɑ nɪˌmoʊ; English kwoʊ ˈæn əˌmoʊ/
Latin.
1.
with what spirit or intention?
[kwoh yoo-re; English kwoh joo r-ee] /kwoʊ ˈyu rɛ; English kwoʊ ˈdʒʊər i/
Latin.
1.
by what right?
[ter-mi-noo s ah kwoh; English tur-muh-nuh s ey kwoh] /ˈtɛr mɪˌnʊs ɑ ˈkwoʊ; English ˈtɜr mə nəs eɪ ˈkwoʊ/
noun, Latin.
1.
the end from which; beginning; starting point; earliest limiting point.
/ˈkwɪd prəʊ ˈkwəʊ/
noun (pl) quid pro quos
1.
a reciprocal exchange
2.
something given in compensation, esp an advantage or object given in exchange for another
/ˈtɜːmɪˌnʊs ɑː ˈkwəʊ/
noun
1.
the starting point; beginning

1560s, from Latin, literally “something for something, one thing for another,” from nominative and ablative neuter singulars of relative pronoun qui “who” (see who) + pro “for” (see pro-) + quo, ablative of quid.
quid pro quo [(kwid proh kwoh)]

A fair exchange; the phrase is most frequently used in diplomacy: “The Chinese may make some concessions on trade, but they will no doubt demand a quid pro quo, so we must be prepared to make concessions too.” From Latin, meaning “something for something.”
An equal exchange or substitution, as in I think it should be quid pro quo—you mow the lawn and I’ll take you to the movies. This Latin expression, meaning “something for something,” has been used in English since the late 1500s.