regi

regi is a Latin form of rex, meaning “king”. It is the dative singular masculine noun.

It can also be a form of rego, “rule, govern; guide, direct, steer”.

Found 536 times in the Latin texts on Socratos.

Where it is used

Caesar, De Bello Gallico 3.13.6: … magis veri simile, quod tantas tempestates Oceani tantosque impetus ventorum sustineri ac tanta onera navium regi velis non satis commode posse arbitrabantur.

Cicero, In C. Verrem 2.5.165: … umitorius, quid M. et P. Cottii, nobilissimi homines ex agro Tauromenitano, quid Q. Lucceius, qui argentariam Regi maximam fecit, quid ceteri? adhuc enim testes ex eo genere a me sunt dati, non qui novisse Gavium, sed se vid …

All forms of rex (declension 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.