escalofrío
shiver
escalar
to climb
+
frío
cold
Escalofrío means shiver and can be thought of as a cold1 (frío1) sensation climbing0 (escalar0) up your body.
noun
- shiverA sudden feeling of cold or shivering, often due to fear or illnessSentí un escalofrío al entrar en la casa abandonada. // I felt a shiver when I entered the abandoned house.