Brown–Driver–Briggs: רָפָה

רָפָה vb. sink, relax

Qal

1. sink down

2. sink, drop

3. sink, relax, abate

4. relax, withdraw

Niph. idle

Pi. causat.: let wings drop

Hiph. causat.

1. let drop

2. let go

3. refrain

Hithp. hast shewn thyself slack