Meaning: traditionally, treasurer or keeper of the treasure.
Cas
Cas is short for Casper, and Casper belongs to one of the three kings — figures who still come down Dutch streets once a year with a paper star.
| Origin | Dutch — short form of Casper or Casparus, the Dutch forms of the name given to one of the magi (see Jasper) |
|---|---|
| Meaning | Traditionally traced to an Iranian court title, the word behind Aramaic gizbar and Persian ganzabar, treasurer |
| Pronunciation | KAHSS — one syllable. The Dutch short a is opener than the a of English cat, nearer the a of father cut short |
| Popularity | Outside the current U.S. top 100; common in the Netherlands, where it is a registered given name and not a pet form of Cassius or Casey |
| Variants | Casper, Kasper, Caspar, Gaspar, Gaspard, Jasper |
| Nicknames | None required; Cas is what is left of Casparus |
| Feast day | 6 January, Driekoningen, when the three kings are sung door to door across the Low Countries |
History & meaning
The Gospel of Matthew neither names the magi nor counts them. The three names surface only centuries later, in a sixth-century Greek chronicle known through its Latin translation, in forms that eventually settled as Caspar, Melchior and Balthasar. Caspar is traditionally traced back to an Iranian court title meaning treasurer or keeper of the treasure, the word standing behind Aramaic gizbar and Persian ganzabar. The chain is long and several of its links are reconstructions, so treat the gloss as the received tradition rather than settled fact. English took the same name by a different road and arrived at Jasper. Dutch wrote it Casper and Casparus, then cut it to Cas.
None of that is academic in the Netherlands and Belgium. On 6 January, Driekoningen, children dress as the three kings, carry a paper star on a stick and go from door to door singing for sweets — a Low Countries tradition considerably older than trick-or-treating and still very much alive in Flanders and the Catholic south of the Netherlands. A Dutch boy called Cas is therefore named, at one remove, after a figure he will personally impersonate at some point in primary school. English speakers hear something else in Casper, namely a cartoon ghost. Cas escapes that entirely, which is part of its appeal to Dutch parents too.
Why parents choose it
Cas is the crispest name in the modern Dutch set: two consonants and a vowel, no digraph, no guttural, nothing an English speaker can get badly wrong beyond opening the a a little wider than they would in cat. It also manages a trick few clipped names bring off — it looks like an abbreviation and still reads as complete.
Middle names for Cas
A blunt first name can afford an ornate second one, and the contrast flatters both: Cas Alexander, Cas Emmanuel, Cas Theodore, Cas Julian. Work through the middle names guide if the surname is also short.
Famous men named Cas
Cas Oorthuys photographed the German occupation of the Netherlands from inside the resistance and spent the following thirty years documenting the country's reconstruction; his archive is held by the Nederlands Fotomuseum. The actor Cas Jansen has worked steadily in Dutch film and television since the 1990s.
Consider instead
Jasper is the English form of the same king's name and needs no explaining. Bas is its closest Dutch relative in sound and register, one letter away. Max does the same job in a name that works unchanged in Dutch, German and English.