This word is from the Spanish muelle (meaning: coil spring).
mu·wél·ye
muwélye
spring
(noun)
Part of a vehicle consisting of layers of thin metal, which serves to dampen shocks or jolts; suspension spring.
KAHULUGAN SA TAGALOG
muwélye: bahagi ng sasakyan na binubuo ng sapin-saping manipis na bakal, at nagsisilbing pampahupa ng kalog o tagtag