interested

UK: ˈɪntrəstɪd | US: ˈɪntrəstɪd

Definition
  1. adj. having a feeling of curiosity or concern about something

  2. adj. showing involvement or investment in a subject or activity

  3. adj. (archaic) motivated by self-interest; not impartial

Structure
interest <to concern, from Latin *interesse*>ed <adjective suffix, past participle>
Etymology

The word "interested" derives from the Latin interesse, meaning "to be between" or "to concern." Over time, interesse evolved into the Old French interest (meaning "compensation for loss"), then into Middle English interest (referring to legal or financial concern). The suffix -ed was added to form the adjective, originally implying "affected by concern" and later broadening to mean "engaged or curious." The modern sense reflects both emotional involvement and self-motivated attention.

Examples
  1. She seemed genuinely interested in the lecture on marine biology.

  2. The investors were interested only in short-term profits.

  3. He gave an interested glance at the newspaper headline.

  4. As a judge, she must avoid appearing interested in the outcome.

  5. Are you interested in joining the debate team?