From Wiktionary, the free dictionary
This appendix contains expressions of deep gratitude in various languages. For example, in English one might say, "Thank you with all of my heart," or "Thank you from the bottom of my heart." The non-English phrases should be accompanied by their literal English translations.
deep gratitude expression
Arabic: مَعَ جَزِيل الشُّكْر ( maʕa jazīl aš-šukr , literally “ with many thanks ” )
Bengali: আপনাকে আমার আন্তরিক ধন্যবাদ ( apnake amar antorik dhonnobad , literally “ you have my sincere thanks ” )
Chinese:
Mandarin: 我 對 您 真是 感激不盡 / 我 对 您 真是 感激不尽 ( wǒ duì nín zhēnshi gǎnjībùjìn )
Czech: ( very formal, ceremonial ) děkuji vám z celého srdce ( literally “ I thank you from my entire heart ” ) , z celého srdce vám děkuji ( literally “ I thank you from my entire heart ” )
Finnish: sydämelliset kiitokset ( literally “ heartfelt thanks ” )
French: merci mille fois ( literally “ thank you a thousand times ” )
German: ich danke Ihnen von ganzem Herzen ( literally “ I thank you from the entire heart ” )
Hindi: बहुत ही शुक्रिया ( bahut hī śukriyā , literally “ very many thanks ” )
Hungarian: nagyon szépen köszönöm (hu) , igazán lekötelez ( literally “ you truly oblige me ” )
Italian: grazie mille (it) f pl ( literally “ a thousand thanks ” )
Japanese: ご恩は一生忘れません ( go-on wa isshō wasuremasen , literally “ I will remember (won't forget) your kindness for all of my life ” )
Korean: 진심으로 감사드립니다 ( jinsimeuro gamsadeurimnida , literally “ with my true heart, I thank you ” )
Latin: permultas gratias tibi ago ( literally “ I give very many thanks to you ” )
Lithuanian: iš visos širdies dėkoju ( literally “ with all my heart I thank you ” ) , ačiū iš visos širdies ( literally “ thank you with all my heart ” )
Meitei/Manipuri: ꯌꯥꯝꯅ ꯊꯥꯒꯠꯆꯔꯤ ꯫/ꯌꯥꯝꯅꯥ ꯊꯥꯒꯠꯆꯔꯤ ꯫ ( yaamna thaagatcharee ./yaamnaa thaagatcharee . , literally “ Many thanks/Thank you very much. ” )
Norwegian: tusen takk (no) ( literally “ a thousand thanks ” )
Polish: z całego serca dziękuję ( literally “ I thank you from the entire heart ” )
Portuguese: obrigado do fundo do meu coração ( literally “ thank you from the bottom of my heart ” )
Romanian: vă mulțumesc din toată inima ( literally “ I thank you from the entire heart ” )
Russian: я благодарю́ Вас от всего́ се́рдца ( ja blagodarjú Vas ot vsevó sérdca , literally “ I thank you from all my heart ” )
Spanish: le doy las gracias desde el fondo de mi corazón ( literally “ I thank you from the bottom of my heart ” )
Swedish: tusen tack (sv) , tack så mycket (sv)
Tagalog: taos-puso akong nagpapasalamat sa iyo ( literally “ I am sincerely thankful to you ” )
Tok Pisin: tenkyu tru ( literally “ thank you very much ” )
Turkish: çok teşekkürler , çok teşekkür ederim , sana minnettarım , size minnettarım
Uyghur: ئۆزلىرىگە كۆپ ھەشقاللا ( özlirige köp heshqalla )
Welsh: Diolch o galon ( literally “ thanks from the heart ” )