construct (n.)
1871 in linguistics, 1890 in psychology, 1933 in the general sense of "anything constructed;" from construct (v.), with altered pronunciation to distinguish noun from verb (as with produce, detail, etc.).
construct (v.)
early 15c., from Latin constructus, past participle of construere "pile up together, accumulate; build, make, erect," from com "with, together" (see com-) + struere "to pile up" (from PIE *streu-, extended form of root *stere- "to spread"). Related: Constructed; constructing.