τείνειν
teínein
“to stretch”
5 words in English grow from this root.
Hypotenuse
Numberὑπόhypó
“stretching underneath”
Peritoneum
Medicineπερίperí
“stretched around”
Peritonitis
Medicineπερίperí
“inflammation of the stretched-around membrane”
Tetanus
Medicineτέτανοςtétanos
“the stretching”
Tonic
Everydayτόνοςtónos
“of stretching”