hygiene, hygienist

Term: hygiene or hygienics, hygienist

Origin: Anc Greek

υγιής/hygies(=healthy) > υγεία/hygeia(=health)

History of word

Hygeia was the daughter and attendant of the medicine-god Asklepios,and  sister of  Panakeia (all-Cure) and Iaso (Remedy). The Romans named her Salus.

The Hippocratic Oath (Greek physician C5th to C4th B.C.):
"I swear by Apollo the physician, and Asklepios, and Hygeia, and Panakeia, and all the gods and goddesses, that, according to my ability and judgment, I will keep this Oath and this stipulation . . ."

Definition

1. Hygiene is the science which concerns the maintenance  of  health.
2. Hygiene is the application of clean or healthy practices
3. Hygienist is the expert on hygiene