confiable
/konˈfjable/ · B2 · adj
reliable, trustworthy, dependable
🤝 con + fiable = with + trustable; you can rely on it, so it's confiable
Spanish confiable comes from confiar, to trust, from Latin confidere (con- + fidere, to trust). It looks like English confide and confidence, which share the same root. A confiable friend is one you can confide in.