I pledge fealty to them vs Loyalty

When to use each in English, with meaning, register, and examples.

I pledge fealty to them

Formal Beyond 10,000 (less common)

Loyalty

Top 2,000 (common) C1 noun

Most formal: I pledge fealty to them Most common: Loyalty

	I pledge fealty to them	Loyalty
Pronunciation	🇬🇧 //ɪ plɛdʒ ˈfiːəlti tuː ðɛm// 🇺🇸 //aɪ plɛdʒ ˈfiːəlti tu ðɛm//	🇬🇧 //ˈlɔɪəlti// 🇺🇸 //ˈlɔɪəlti//
Meaning	I promise loyalty to them.	Being faithful and supportive to someone or something.
Example	In the ancient kingdom, I pledge fealty to them, promising to serve faithfully.	Her loyalty to the company never wavered, even during tough times.
Register	Formal	Neutral
How common	Beyond 10,000 (less common)	Top 2,000 (common)
CEFR level	-	C1
Part of speech		noun
Collocations	pledge fealty, swear fealty, offer fealty, give fealty, recognize fealty	demonstrate loyalty, show loyalty, loyalty program
Antonyms	-	disloyalty, betrayal, infidelity
Common mistakes	Might confuse 'pledge' with 'plead', thinking they mean the same., Using 'fealty' in informal situations, where 'loyalty' is better., Confusing 'pledge' with 'promis' as if they are interchangeable.	Confused with 'faithfulness' – loyalty emphasizes a commitment to a person or cause., Omitting 'to' when discussing loyalty – correct usage is 'loyalty to someone/something'.
Usage notes	Used in formal or serious contexts, often in historical or fantasy settings. Not suitable for casual conversations.	Loyalty is often used in contexts involving relationships, brands, or beliefs. It's less commonly used in formal legal or financial documents. Avoid using it lightly in casual conversations.

See it in real clips

House Of Dragons › S1 E1

I pledge fealty to them

I pledge fealty to them

I pledge my ever-ending loyalty.

Band Of Brothers › S1 E1

...their loyalty lay more to the platoon than to the company.

They were trying to buy the loyalty of tribal leaders

I pledge my ever-ending loyalty.

Band Of Brothers › S1 E1

...their loyalty lay more to the platoon than to the company.

Loyalty

Frequently asked questions: I pledge fealty to them vs Loyalty

What's the difference between I pledge fealty to them and Loyalty?

I pledge fealty to them: I promise loyalty to them. Loyalty: Being faithful and supportive to someone or something.

Which is more formal: I pledge fealty to them and Loyalty?

I pledge fealty to them is the most formal of these.

Which is more common: I pledge fealty to them and Loyalty?

Loyalty is the most common in everyday English.

Can you show an example of each?

I pledge fealty to them: In the ancient kingdom, I pledge fealty to them, promising to serve faithfully. Loyalty: Her loyalty to the company never wavered, even during tough times.

Can I use I pledge fealty to them and Loyalty interchangeably?

Not always. I pledge fealty to them and Loyalty are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.