Nicholas m. Greek νίκη 'victory' + Greek λαός 'people'.
The name of a 3rd C saint better known as Santa Claus, a 9th C pope, an 11th C pope, a 12th C patriarch of Constantinople, a 12th C Danish saint, a 12th C king of Denmark, a 13th C Italian saint, two 13th C popes, a 14th C antipope, a 15th C pope, and a 15th C Swiss saint. Sagradas Escrituras (1596): Nicolás.
The English diminutives Colle, Colyn, and Nic and the vernacular Nicol and Nichol are witnessed in 1379 in the relational bynames Collewfy' (WRYPT1 p. 145), Colynwyf' (WRYPT1 p. 146), Nicsoñ (WRYPT1 p. 24), Nicoldoghter (WRYPT1 p. 31), and Nicholmaydeñ (WRYPT1 p. 145).