ETYM as. leáp.
1. A light springing movement upwards or forwards; SYN. leaping, spring, bound, bounce.
2. An abrupt transition; SYN. jump.
3. The distance leaped (or to be leaped).

Stands for Lightweight Extensible Authentication Protocol, an authentication protocol developed by Cisco for wireless networks.
See: Lightweight Extensible Authentication Protocol (LEAP)

(Irregular preterit, past participle: leaped).
To pass abruptly from one state or topic to another; SYN. jump.