grácil
slender
grace
elegance or refinement of movement
+
-il
adjective suffix
Grácil means slender and can be thought of as having the quality of grace0 (elegance or refinement of movement0) with the adjective1 suffix -il1.
adjective
- slenderSlender, delicate, or graceful in form or appearanceLa bailarina tiene una figura grácil. // The dancer has a slender figure.