Know why cattywampus was trending last week?
"small-headed," 1845, from French microcéphalique, from Modern Latin microcephalus, from Greek mikros "small" (see mica) + kephale "head" (see cephalo-). Related: Microcephalism; microcephalous (1840); microcephaly (n.).
microcephaly mi·cro·ceph·a·ly (mī'krō-sěf'ə-lē)n. Abnormal smallness of the head. Also called nanocephaly.