The word "younghood" is not commonly found in the English language. It does not have an established etymology as it is not a widely recognized term. It appears to be a combination of the word "young", meaning in an early stage of life or growth, and the suffix "-hood", which denotes a state or condition. However, it is worth noting that "younghood" does not have a usage pattern similar to other words with the "-hood" suffix, such as adulthood or childhood.