杜: Du Kang, Du Fu. The character "Du" refers to the sweet pear tree, as stated in the "Shuowen Jiezi" dictionary: "The male is called 'Tang', and the female is called 'Du'."
祺: Auspiciousness, serenity, and happiness.
Meaning: The name Du Qi is harmonious in sound, symbolizing auspiciousness and happiness, with the character 'Qi' representing good fortune.