Discussing a TON of Pathologies as well as Medical terms you should know!

Arthritis - "inflammation of a joint,"

" from arthritis, fem. of arthrites (adj.) "pertaining to joints" (Greek nosos is a fem. noun), from arthron "a joint" + -itis, “an inflammation of”

Conjunctivitis - from assimilated form of com "with, together" + iungere "to join together."

Also known as “pink eye” because it can cause the white of the eye to take on a pink or red color. Symptoms of pink eye can vary but typically include redness or swelling of the white of the eye.

Diabetes - medical name of a set of affections characterized by abnormal discharge of urine.

from medical Latin diabetes, from late Greek diabetes "excessive discharge of urine" (so named by Aretaeus the Cappadocian, physician of Alexandria, 2c.), literally "a passer-through, siphon," from diabainein "to pass through," from dia "through"  + bainein "to go, walk, step".

Chlamydia - type of genital infection, 1984, from the name of the bacteria that causes it.

formed from a Latinized combining form of Greek khlamys (genitive khlamydos) "short mantle, upper garment for men, military cloak."
Said to be so called due to its ability to "cloak" the nuclei of infected cells.

Clostridium Difficile - Clostridium, the genus name of these gram-positive, spore-forming, anaerobic bacteria comes from Greek klōstēr (spindle) because, under the microscope, the colonies resemble spindles used in cloth weaving and long sticks with a bulge at the end.

Staphylococcus aureus:;

staphylo: "bunch of grapes" (from greek σταϕυλή, meaning "bunch of grapes")

coccos: "berry" (from greek κόκκος, meaning "berry")

aureus: "golden" (from latin aureus, meaning "golden")

The bacteria Staphylococcus aureus looks like a cluster of small berry-shaped cells (coccos) that are arranged in a formation which resembles a bunch of grapes (staphylo), and appear golden (aureus) in colour when grown on a petri dish.

Depression -  directly from Medieval Latin depressionem (nominative depressio), noun of action from past participle stem of Latin deprimere "to press down, depress."

Leukemia - progressive blood disease characterized by abnormal accumulation of leucocytes, a type of white blood cell.

Gonorrhea - from Late Latin gonorrhoia, from Greek gonos "seed" + rhoe "flow," from rhein "to flow". Mucus discharge was mistaken for semen.