The compound 'straight-shooting' originates from the literal imagery of marksmanship in American English. The adjective 'straight', evolving from the concept of being physically stretched and thus direct, combines with the verbal noun 'shooting', which metaphorically extends from launching projectiles to delivering speech or action. This fusion creates a vivid metaphor where honest, frank communication is likened to the direct and accurate flight of a projectile toward its target. The term solidified in the 20th century, particularly in Western and business contexts, to describe a person whose words and intentions are as direct and unambiguous as a well-aimed shot.

Structure: straight (direct) + shooting (acting/speaking) - straight: From Middle English streght, streyt, from Old English streht (past participle of streccan 'to stretch'), meaning 'direct, undeviating'. Its functional role is as an adjective modifying the action. - shooting: From Old English scēotan ('to shoot, hurl missiles'), used metaphorically to mean 'acting or speaking in a rapid, direct manner'. Its functional role is as a noun (gerund) forming the core action of the compound.