This is the 507th most frequent Thai word.
ทร
The Thai word "ทร" is an archaic or formal prefix meaning "noble" or "royal" and is often used in royal or poetic contexts.
Here, 'ทร' is part of 'ทรง', which can imply a property or state, here meaning 'powerfully'.
เขาชอบฟังเสียงดนตรีที่บรรเลงแบบทรงพลัง
He enjoys listening to music performed powerfully.
In this expression, 'ทรง' acts as a verb indicator for royal actions, indicating the formality related to the King.
พระองค์ทรงให้ความเมตตาต่อผู้คนในราชอาณาจักร
The King shows compassion to the people in the kingdom.
In this sentence, 'ทร' is used as a root in 'ทรราช', combining with 'ราช' (king or ruler) to imply a tyrant.