Definition of strenuous

The word "strenuous" has its origins in the 14th century. It comes from the Old French word "estrenu", which is derived from the Latin "strenuus", meaning "strong" or "vigorous". In Latin, the prefix "stren-" means "to stretch" or "to stretch out", and the suffix "-uus" forms an adjective. In Middle English, "strenuous" first appeared as a noun, meaning "a subtle or minute inquiry" or "a laborious or tedious investigation". Over time, the word evolved to also become an adjective, describing something that requires a lot of effort or energy, such as "strenuous exercise" or "strenuous objections". Today, "strenuous" is often used to describe activities or tasks that are physically or mentally demanding, requiring endurance, perseverance, and a significant amount of strength or energy.