where did this shrub proteaceae name originate from?
It is  derived from the name of the Greek god Proteus.
Proteaceae
The name Proteaceae by Antoine Laurent de Jussieu in 1789 was based on the genus "Protea", which in 1767 Carl Linnaeus derived from the name of the Greek god Proteus, a deity who was able to change between many forms. 
what is adenanthos cuneatus? A shrub of the family Proteaceae. what is the last mentioned family? They are a family of flowering plants predominantly distributed in the Southern Hemisphere. what is the demographics in this hemisphere? Around 800 million humans live in this hemisphere. what are some characteristics typical of this place? The Coriolis effect causes cyclones and tropical storms to spin clockwise here. what is the aforementioned effect all about? UNANSWERABLE what are some flowers belonging to the shrub type mentioned earlier? UNANSWERABLE
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Proteaceae [SEP] Etymology
The name Proteaceae by Antoine Laurent de Jussieu in 1789 was based on the genus "Protea", which in 1767 Carl Linnaeus derived from the name of the Greek god Proteus, a deity who was able to change between many forms. This is an appropriate image, seeing as the family is known for its astonishing variety and diversity of flowers and leaves.