A paucity is a small amount of something, an amount that is less than what is needed or wanted.
Its first known use began in the 15th century, originally from the Middle English paucite/ from Latin paucitat-, paucitas, paucus, meaning a little.
Used in a sentence: There seems to be a paucity of useful answers to the problem of traffic congestion at rush hour.
Source cited: http://www.merriam-webster.com/dictionary/paucity
One of the things I like best about using the Merriam-Webster site is that it gives a link to how to pronounce the word (you can hear someone pronouncing it)!