pa. pple. or a., bad formation for TRIFOLIATED (after TREFOIL): = prec.

1

1835.  R. Willis, Archit. Mid. Ages, v. 47. A quatrefoil, each of whose foils is trefoliated with an entire trefoil.

2

1900.  Daily News, 17 March, 4/6. On each section of the trefoliated leaves a blood-red spot was distinctly visible.

3