type of genital infection, 1984, from the name of the bacteria that causes it (1966), which is formed from a Latinized combining form of Greek khlamys (genitive khlamydos) "short mantle, upper garment for men, military cloak," which is of unknown origin, + abstract noun ending -ia. Said to be so called due to its ability to "cloak" the nuclei of infected cells. Related: chlamydial.

plant genus indigenous to subtropical Asia and eastern North America, very ornamental and frequently cultivated, 1748, named by Plumier from Magnolius, Latinized name of Pierre Magnol (1638-1715), French physician and botanist, professor of botany at Montpellier, who devised the systematic classification of plants, + abstract noun ending -ia. As the name of the pale pink color of magnolia blossoms, by 1931.

1706, "weakening of the eyesight without any apparent defect in the eyes," medical Latin, from Greek amblyopia "dim-sightedness," noun of action from amblys "dulled, blunt" (from a suffixed form of PIE root *mel- (1) "soft") + ōps "eye" (from PIE root *okw- "to see") + abstract noun ending -ia. Related: Amblyopic.

"fever, a higher bodily temperature than is normal," 1769, medical Latin, from Greek pyrexis "feverishness," from pyressein "to be feverish, to be ill of fever," from pyretos "fever, burning heat" (related to pyr "fire," from PIE root *paewr- "fire") + abstract noun ending -ia. Formerly sometimes nativized as pyrexy. Related: Pyrexial; pyrexic; pyrexical.