sinew

Imagine an archer drawing back their bow. Sinew is the tough cord or tissue in a body, especially in animals, that suggests strength and powerful movement. In older or literary English, the word can point to tendons, muscles, or the strong bands that help the body work. It is not only about the body, though. "Sinew" can also mean the force or support that keeps something going: the vital part that holds things together. A strong economy has sinew, and a well-built argument needs sinew in its reasoning.

Think of it like this: muscles are the engine, but sinew is the drive shaft. Without it, the power can't be transferred! In literature, you might hear about "the sinews of war" – meaning the resources and manpower that sustain a military effort.

The word "sinew" originally referred to the tough fibrous parts of the body, especially tendons and similar tissues in animals. From that physical sense comes the word's wider feeling of strength, resilience, and force. Think about an animal's body: these tough cords help make movement possible. Historically, animal sinew was even used for making strong bowstrings, thread, and other useful bindings.

But "sinew" has expanded beyond just biology. It's often used metaphorically to describe the vital parts of something that give it strength and hold it together. You might say "the sinews of society" referring to its essential institutions like family, education, and law enforcement. Or you could talk about "the sinews of a political campaign," meaning the grassroots organization and fundraising efforts that keep it running.

The word carries a sense of underlying power and practicality. It's not flashy or glamorous; it's the quiet strength that enables things to function. A writer might describe a character as having "iron sinew," suggesting they are tough, determined, and resilient. In fact, Shakespeare frequently used "sinew" in this way, often referring to military strength or the backbone of an army.

So whether you're talking about anatomy, society, politics, or character, "sinew" points to the tough supporting tissue of the body or, more broadly, to the strength and support that make something work.