A small unit of liquid or dry measure in Spanish-speaking regions, worth one-quarter of a larger unit; a small coin or fraction of currency.
Spanish diminutive of 'cuartillo,' from 'cuarto' (fourth) with the diminutive suffix '-illo,' meaning 'a small fourth part.'
Spanish can stack diminutives—you could go 'cuarto' (quarter) to 'cuartilla' to 'cuartillo' to 'cuartillito,' each one getting smaller and cuter-sounding!
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