Which language supplies the word quinceañera?

Spanish supplies the word quinceañera.

The term comes from Spanish and is related to quince, meaning fifteen. It is used throughout Spanish-speaking communities and has also entered English-language usage, especially in the United States and other places with large Latino populations.

Spanish spelling includes the letter ñ, which represents a distinct sound from n. The accent mark in quinceañera indicates the stressed syllable and is part of the standard spelling. In informal English, the word is sometimes written without the accent or tilde, but quinceañera is the conventional Spanish form.

Portuguese has related traditions and vocabulary, including festa de debutantes, but Portuguese is not the language that supplies the word quinceañera. The name therefore identifies the linguistic background of the term even though the celebration itself varies across countries and communities.