-logy
-logy , suffix
[Greek {not transcribed}, from lo`gos word, discourse, from le`gein to speak. See Logic.]
A combining form denoting a discourse, treatise, doctrine, theory, science; as, theology, geology, biology, mineralogy.
Logy (lō"gē) , adjective
[From Dutch log.]
Heavy or dull in respect to motion or thought; as, a logy horse; feeling logy. [United States]
Porcupines are... logy, sluggish creatures.