detendre
Détendre is a French verb meaning to loosen, relax, or relieve tension. It can describe physical relaxation, such as loosening tense muscles, as well as easing social or emotional tension, such as détendre l'atmosphère. The verb can be used transitively (détendre quelque chose) and reflexively (se détendre, to unwind oneself).
Conjugation and forms are regular within the -endre family. In the present tense the forms are je
Common uses include physical relaxation (se détendre après le travail; détendre les muscles du cou), social
Etymology: détendre derives from dé- plus tendre, with tendre meaning to stretch. The prefix dé- conveys undoing