tend-, tendo-, ten-, teno-, tenot-, tenonto-, tens-, tent-, -tend, -tension, -tent, -tense, -tensive, -tentious

(Greek > Latin: to move in a certain direction; to stretch, to hold out; tension; as well as tendon, sinew)

tentaculum (s), tentacula (pl)
A feeler or tentacle, as when someone feels or perceives by the senses; especially, by touch.

The political characteristic of the early Greeks, and of the early Romans, too, is that out of the tentacula of a monarchy they developed the organs of a republic.

Oxford English Dictionary
tentage
tentative
tentatively
tenter
tenterhook
One of the hooks that holds cloth on a tenter.
thermotensile
Pertaining to cohesive power as affected by temperature.
thermotension
Tension or strain applied to material at a specified temperature to increase or test its tensile power.
untended

Related "tension" words at this tono- unit.