"hymn or psalm of praise to God," 1640s, from Medieval Latin doxologia, from Ecclesiastical Greek doxologia "praise, glory," from doxologos "praising, glorifying," from doxa "glory, praise" (from dokein "to seem good," from PIE root *dek- "to take, accept") + logos "a speaking" (see -logy). Related: Doxologize; doxological.
also gynaecology, "science of women's health and of the diseases peculiar to women," 1847, from French gynécologie, from Latinized form of Greek gynaiko-, combining form of gynē "woman, female," from PIE root *gwen- "woman." Second element is from French -logie "study of," from Greek (see -logy). Another word for it was gyniatrics.
"the science of life and living things," 1819, from Greek bios "life, one's life, lifetime" (from PIE root *gwei- "to live;" see bio-) + -logy "study of." Suggested 1802 by German naturalist Gottfried Reinhold Treviranus, and introduced as a scientific term that year in French by Lamarck; they seem to have hit upon the word independently.
"science of the earth's atmosphere, scientific study of weather and climate," especially with a view to forecasting the weather, 1610s, from French météorologie and directly from Greek meteōrologia "treatise on celestial phenomena," literally "discussion of high things," from meteōron "thing high up" (see meteor) + -logia "treatment of" (see -logy).