What is flirtatiousness? How to use in English

The word "flirtatiousness" originated in the late 18th century, as a combination of the verb "flirt" and the noun suffix "-ousness." The verb "flirt," which means to behave coquettishly towards someone, is believed to have come from the Middle French "flirter," meaning to trifle or play a game. The Middle French word itself is derived from the Old French "flirteren," meaning to trifle or cheat. The Old French word is thought to be a derivative of the Middle Low German word "fleeren," which means to deceive or trick. The concept of flirtatiousness, or coquettish and playful behavior, has existed in various forms throughout history and across cultures. In some societies, it has been viewed as a way of attracting a potential partner, while in others, it has been seen as a form of societal flattery or social custom. In the English-speaking world, the word "flirtatiousness" gained traction in the late 18th century and has since become a widely used term to describe various forms of flirtatious behavior, ranging from subtle hints and gestures to more overt advances and games. It continues to be an important part of social interactions and dating rituals in many cultures around the world today.