/ˈtɛndər/
[adjective] Gentle, soft, and kind in nature; also used to describe something that is easily hurt, sensitive to pain, or soft in texture. A tender touch is careful and loving, while tender meat is soft and easy to chew.
'Tender' secretly carries the same ancient root as 'tendon' — both trace back to a Latin word meaning 'to stretch.'
The word 'tender' arrives in English in the 13th century from the Old French word 'tendre', meaning soft, delicate, or young. Old French inherited it directly from the Latin adjective 'tener', which carried the senses of soft, delicate, young, and sensitive. That Latin root is believed to connect to an even older Proto-Indo-European base, *ten-, meaning 'to stretch' — the idea being that something stretched thin is naturally soft and fragile. This same ancient root gave Latin the word 'tendere', meaning to stretch, which passed through Old French 'tendre' into English as 'tend' and 'tension', and also produced 'tendon' — the fibrous cord that stretches between muscle and bone.
In its earliest English uses, 'tender' described physical softness or the vulnerability of young things — a tender plant, a tender child. The word carried a strong sense of something that could be easily damaged, something that required gentle handling. This physical meaning shaped everything that came after: if you are tender with another person, you treat them as though they might break.
The emotional meaning grew naturally from the physical one. By the 14th century, English writers were using 'tender' to describe feelings of gentle love and care. A 'tender heart' was one easily moved by the suffering of others — porous to the world's pain in the way that soft skin is porous to pressure. This shift from describing physical texture to describing emotional character is one of the most common and beautiful patterns in the history of English, where the language of the body becomes the language of the soul.
What makes 'tender' especially interesting is how many distinct but related words it quietly supports in English. The verb 'to tend' — meaning to look after or care for — shares its Latin ancestry through Old French 'tendre', from Latin 'tendere'. The word 'tenement' arrived via Latin 'tenere', meaning to hold, which is a close cousin. Even 'tender' used as a noun or verb in business — to submit a formal offer or bid — came through a different route: Old French 'tendre' in the sense of 'to offer or present', again from Latin 'tendere', meaning to stretch out or extend something toward someone.
In cooking, 'tender' describes meat that has been softened through slow cooking until its fibres relax and yield easily to a fork. This is very close to the original Latin sense: something that has been, in effect, stretched and loosened to the point of gentle surrender. In medicine, a 'tender' area is one that hurts when touched — again, a surface that is too sensitive, too open to the world. Across all its meanings, 'tender' holds together a coherent idea: something soft enough to be affected, whether by a finger, a feeling, or an act of kindness.