Translation of "mirthfulness" into Persian

The doctor did not answer, but he gave a chuckle of bitter mirth.

دکتر پاسخ نداد، امّا از شادی ریز خندید.

But do not look for mirth at the ending.

امـا در پایـان راه بـه انتظـار خوشی نباش.

a sort of mirth accentuated his enthusiasm, and he was at once both laughing and lyric.

یک نوع نشاط حالت شفیتگیش را شدت میداد، و یکباره، هم خندان میشد هم شاعرانه.