慶ぶ
よろこぶ · yorokobu · JLPT N2 · verb-godan
to be delighted
🎉 慶 = 鹿 (deer, a gift at festive rites) + 心 (heart): joy at good news, felt from the heart
Related to 慶事 (happy event) and 慶祝 (celebration). Read it yoro-kobu. Everyday writing usually uses 喜ぶ, which carries the same sense of being glad.