ex·ter·nal·ize 
(ĭk-stûrnə-līz′)
(ĭk-stûrnə-līz′)tr.v. ex·ter·nal·ized, ex·ter·nal·iz·ing, ex·ter·nal·iz·es
1.
a. To make external.
b. To manifest externally: "Marriage is a nice way to externalize the private commitments made between you" (Patti Davis).
2. To attribute to outside causes.
3. To project or attribute (inner conflicts or feelings) to external circumstances or causes.
ex·ter′nal·i·zation (-lĭ-zāshən) n.