Caj

Variant of KAI (1).

KAI (1)   male   Frisian, German, Swedish, Norwegian, Danish, Finnish, Dutch
Meaning uncertain, possibly a Frisian diminutive of GERHARD, NICOLAAS, CORNELIS or GAIUS.
GERHARD   male   German, Dutch, Swedish, Danish, Norwegian, Ancient Germanic
German, Dutch and Scandinavian form of GERARD.
GERARD   male   English, Dutch, Catalan, Polish
Derived from the Germanic element ger "spear" combined with hard "brave, hardy". The Normans introduced this name to Britain. It was initially much more common than the similar name Gerald, with which it was often confused, but it is now less common.
NICOLAAS   male   Dutch
Dutch form of NICHOLAS.
NICHOLAS   male   English, French
From the Greek name Νικολαος (Nikolaos) which meant "victory of the people" from Greek νικη (nike) "victory" and λαος (laos) "people". Saint Nicholas was a 4th-century bishop from Anatolia who, according to legend, saved the daughters of a poor man from lives of prostitution. He is the patron saint of children, sailors and merchants, as well as Greece and Russia. He formed the basis for the figure known as Santa Claus (created in the 19th century from Dutch Sinterklaas), the bringer of Christmas presents.

Due to the renown of the saint, this name has been widely used in the Christian world. It has been common in England since the 12th century, though it became a bit less popular after the Protestant Reformation. The name has been borne by five popes and two czars of Russia.
CORNELIS   male   Dutch
Dutch form of CORNELIUS.
CORNELIUS   male   Ancient Roman, English, Dutch, German, Biblical
Roman family name which possibly derives from the Latin element cornu "horn". In Acts in the New Testament Cornelius is a centurion who is directed by an angel to seek Peter. After speaking with Peter he converts to Christianity, and he is traditionally deemed the first gentile convert. The name was also borne by a few early saints, including a 3rd-century pope. In England it came into use in the 16th century, partly due to Dutch influence.
GAIUS   male   Ancient Roman, Biblical Latin, Biblical
Roman praenomen, or given name, of uncertain meaning. It is possibly derived from Latin gaudere "to rejoice", though it may be of unknown Etruscan origin. This was a very common Roman praenomen, the most famous bearers being Gaius Julius Caesar, the great leader of the Roman Republic, and his adopted son Gaius Octavius (later known as Augustus), the first Roman emperor. This name also appears in the New Testament belonging to a bishop of Ephesus who is regarded as a saint.
FULL FORMS
DANISH: Gerhard, Niklas, Nikolaj
NORWEGIAN: Gerhard, Niklas
SWEDISH: Gerhard, Niklas
EQUIVALENTS
ANCIENT GERMANIC: Gerhard
ANCIENT GREEK: Gaios, Nicolaus, Nikolaos
ANCIENT ROMAN: Caius, Cornelius, Gaius
BASQUE: Nikola
BIBLICAL GREEK: Gaios
BIBLICAL LATIN: Gaius
BIBLICAL: Cornelius, Gaius
BULGARIAN: Nikola, Nikolai, Nikolay
CATALAN: Gerard, Nicolau
CROATIAN: Nikica, Niko, Nikola, Nikša
CZECH: Kornel, Mikoláš, Mikula, Mikuláš, Nikola
DANISH: Cai, Caj, Claus, Kai, Kaj, Kay, Klaus, Nels, Niels, Nils
DUTCH: Cees, Corné, Cornelis, Cornelius, Geert, Gerard, Gerd, Gerhard, Gerrit, Gerry, Gert, Kai, Kees, Kerneels, Klaas, Nick, Nico, Nicolaas, Niek, Niels, Nikolaas
ENGLISH: Connie, Cornelius, Gerard, Gerrard, Jerrard, Nic, Nicholas, Nick, Nickolas, Nicky, Nik, Nikolas
ESPERANTO: Niĉjo, Nikolao
ESTONIAN: Nigul
FINNISH: Kai, Klaus, Niilo, Niklas, Niko
FRENCH: Corneille, Gérard, Nicholas, Nicolas
FRISIAN: Gerrit, Jorrit, Jurre, Jurryt, Kai, Kay, Klaes
GALICIAN: Nicolau
GEORGIAN: Gaioz, Korneli, Nika, Nikoloz, Nikusha
GERMAN (SWISS): Niklaus
GERMAN: Claus, Cornelius, Gerd, Gerhard, Gerhardt, Gert, Kai, Kay, Klaus, Nickolaus, Nico, Nicolaus, Niklas, Nikolaus
GREEK: Nicolaos, Nik, Nikolaos, Nikolas
HUNGARIAN: Gellért, Kolos, Kornél, Miklós, Miksa, Nikola
IRISH: Gearóid, Nioclás
ITALIAN: Cornelio, Gerardo, Gherardo, Niccolò, Nico, Nicola, Nicolò
LATVIAN: Nikolajs
LIMBURGISH: Klaos, Sjra
LITHUANIAN: Kajus
LOW GERMAN: Klaas
MACEDONIAN: Nikola, Nikolche
MAORI: Nikora
MEDIEVAL ENGLISH: Col, Nichol, Nicol
MEDIEVAL SLAVIC: Nikola
NORWEGIAN: Cai, Caj, Kai, Kaj, Kay, Klaus, Nils
POLISH: Gerard, Kornel, Mikołaj
PORTUGUESE (BRAZILIAN): Caio
PORTUGUESE: Cornélio, Nico, Nicolau
ROMANIAN: Cornel, Corneliu, Neculai, Nicolae, Nicu, Nicușor
RUSSIAN: Kolya, Nikolai, Nikolay
SCOTTISH: Neacel, Nichol, Nicol
SERBIAN: Nikica, Nikola
SLOVAK: Kornel, Mikuláš
SLOVENE: Miklavž, Nik, Niko, Nikola, Nikolaj
SPANISH: Cornelio, Gerardo, Nico, Nicolao, Nicolás
SWEDISH: Cai, Caj, Claes, Kai, Kaj, Kay, Klas, Nils
UKRAINIAN: Mykola
DIMINUTIVES AND SHORT FORMS
ENGLISH: Colin, Collin
FINNISH: Launo
FEMININE FORMS
ANCIENT ROMAN: Cornelia
BASQUE: Nikole
BULGARIAN: Nikol, Nikolina
CROATIAN: Kornelija, Lina, Nika, Nikolina
CZECH: Kornélie, Nela, Nicol, Nicola, Nikol, Nikola
DUTCH: Cokkie, Cornelia, Corrie, Gerarda, Gerda, Gerdina, Gerry, Klasina, Klazina, Lia, Lieke, Nicol, Nicole, Nicolet, Nicoline
ENGLISH (BRITISH): Nichola
ENGLISH: Cornelia, Nichole, Nicky, Nicola, Nicole, Nikki, Nikkole, Nikole
FRENCH: Colette, Coline, Cornélie, Nicole, Nicolette, Nicoline
GERMAN: Cora, Cornelia, Gerda, Kora, Kornelia, Nele, Nicol, Nicola, Nicole, Nikola
GREEK: Nikoleta
HUNGARIAN: Kornélia, Nikolett
ITALIAN: Cornelia, Gerarda, Lina, Nicoletta, Nicolina
MACEDONIAN: Nikolina
MAORI: Nikora
POLISH: Gaja, Kaja, Kornelia, Nikola
ROMANIAN: Cornelia, Nicoleta
SERBIAN: Kornelija, Nikolina
SLOVAK: Nikola
SLOVENE: Gaja, Kaja, Nika
SPANISH: Nicolasa
OTHER FORMS
ARTHURIAN ROMANCE: Cai, Kay
ENGLISH: Cornell, Garret, Garrett, Jarrett
WELSH MYTHOLOGY: Cai, Kay