This is a great example of when etymology becomes really fun! The word “esposa” in Spanish is based on the Latin verb “spondere”, which means “to bind”. The word “spouse” in English is also based on the original Latin.
When speaking Spanish, the context of a conversation would indicate whether the term “esposas” means “handcuffs” or “wives”. They say marriage is a binding union, so whether you’re in handcuffs or not, you could still call your wife “the old ball and chain”!