adhirieron

Adhirieron is the third-person plural form of the Spanish verb adherir in the preterite tense, meaning "they adhered" or "they attached." The base verb adherir denotes attachment, adhesion, or agreement to a plan, rule, or idea. In the preterite, the ellos/ellas/ustedes form is adherieron.

Adhirieron is used to describe past actions by multiple subjects. It can refer to physically sticking to a surface or to figurative adherence to a plan, policy, or principle. Examples include: “Los ciudadanos adhierieron al nuevo reglamento,” meaning they joined or accepted the regulation, and “Los investigadores adherieron al protocolo,” meaning they followed or stuck to the protocol in practice. The form is common in formal or written narration of past events.

Etymology and related forms: adherir comes from Latin adhaerere, from ad- “to” + haerēre “to cling.” Related forms include adherir (the infinitive), adherencia (adhesion), and adherente (adherent). Other preterite forms for reference are yo adherí, tú adheriste, él adherió, nosotros adherimos, vosotros adheristeis, ellos adherieron. The verb shares its root with terms referring to sticking, clinging, or aligning with a guideline or group.

See also: adherencia, adherente, adherir.