|Origin:||florir 'to produce flowers', from Latin flos 'flower'|
to develop well and be successful [= thrive]:
The economy is booming and small businesses are flourishing.
to grow well and be very healthy [↪ thrive]:
Most plants will flourish in the rich deep soils here.
to wave something in your hand in order to make people notice it:
She walked quickly to the desk, flourishing her cheque book.