The Cabécar language is an indigenous American language of the Chibchan language family

Chibchan languages

The Chibchan languages make up a language family indigenous to the Isthmo-Colombian area, which extends from eastern Honduras to northern Colombia and includes populations of these countries as well as Nicaragua, Costa Rica, and Panama...

 which is spoken in Costa Rica. Specifically, it is spoken in the inland Turrialba Region of the Cartago Province. According to Ethnologue

Ethnologue

Ethnologue: Languages of the World is a web and print publication of SIL International , a Christian linguistic service organization, which studies lesser-known languages, to provide the speakers with Bibles in their native language and support their efforts in language development.The Ethnologue...

 there were only 8,840 Cabécar speakers in 2000 with 80% of these speakers being monolingual. It is also known as Chirripó or Estrella.

Orthography

Cabécar uses a Latin alphabet with umlaut

Umlaut (diacritic)

The diaeresis and the umlaut are diacritics that consist of two dots placed over a letter, most commonly a vowel. When that letter is an i or a j, the diacritic replaces the tittle: ï....

s for (ë, ö), and tilda

Tilde

The tilde is a grapheme with several uses. The name of the character comes from Portuguese and Spanish, from the Latin titulus meaning "title" or "superscription", though the term "tilde" has evolved and now has a different meaning in linguistics....

s for (ã, ẽ, ĩ, õ, ũ).