恳 (w)

(kěn) earnest

恳切 (w)

(kěnqiè) earnest; sincere

恳求 (w)

(kěnqiú) to beg; to beseech; to entreat; entreaty

恳请 (w)

(kěnqǐng) to request earnestly

恳辞 (w)

(kěncí) to decline with sincere thanks