/ ˈhɑːtɪli; NAmE ˈhɑːrt-/ adverb
1.
with obvious enjoyment and enthusiasm :
to laugh / sing / eat heartily
2.
in a way that shows that you feel strongly about sth :
I heartily agree with her on this.
3.
extremely :
heartily glad / relieved
/ ˈhɑːtɪli; NAmE ˈhɑːrt-/ adverb
1.
with obvious enjoyment and enthusiasm :
to laugh / sing / eat heartily
2.
in a way that shows that you feel strongly about sth :
I heartily agree with her on this.
3.
extremely :
heartily glad / relieved
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005