amagar

To feint or fake a move — a boxer amagando un golpe, a player amagando un pase — or, more broadly, to show early signs of something without it fully happening: amagó con llover pero no llovió. Common in sports commentary and in describing things that threaten to happen.

• El delantero amagó con disparar y luego pasó el balón. — The forward faked a shot and then passed the ball.
• El cielo amagaba tormenta desde por la mañana. — The sky had been threatening a storm since the morning.
• Amagó con renunciar, pero al final se quedó en el puesto. — He threatened to resign, but in the end he kept the job.

Confusing amagar (to feint/show signs of, without it necessarily happening) with amenazar (to explicitly threaten) — amagar often implies the thing doesn't actually occur, while amenazar is a direct statement of intent.

Often confused with amenazar.