Tonantis
Tonantis is a Latin form of tono, meaning “thunder; (Tonans) the Thunderer (Jupiter)”. It is the present active participle genitive singular masculine.
Found 56 times in the Latin texts on Socratos.
Where it is used
Ovid, Heroides 9.7: Hoc velit Eurystheus, velit hoc germana Tonantis,
Horace, Carmina 1.34.7: plerumque, per purum tonantis
All forms of tono (conjugation table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.