quids

n. pound sterling (Slang); lump of chewing tobacco

The tertium quids (sometimes shortened to quids) refers to different factions of the United States Democratic-Republican Party during the period 1804-1812. In Latin, the term means "a third something". Quid was a disparaging term that referred to cross-party coalitions of Federalists and moderate Democratic-Republicans.
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Noun
1. the basic unit of money in Great Britain; equal to 100 pence
(synonym) British pound, pound, pound sterling
(hypernym) British monetary unit
(part-meronym) penny
2. something for something; that which a party receives (or is promised) in return for something he does or gives or promises
(synonym) quid pro quo
(hypernym) retainer, consideration
3. a wad of something chewable as tobacco
(synonym) chew, chaw, cud, plug, wad
(hypernym) morsel, bit, bite

= quid, crux.
Ex: The important moral crux at the heart of the novel 'The debt collector' is that the odds are stacked against the rehabilitation of violent criminals.
Ex: The crux of the process is the development of multiple models.
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* el quid de la cuestión = the crux of the problem, the crux of the matter.
* llegar al quid de la cuestión = arrive at + the heart of the matter.
* quid de la cuestión, el = heart of the matter, the, heart of the question, the.

squid