The story
From e(thyl) + (aci)tretin (“retinol derivative”) + -ate.
Etymology from Wiktionary, CC BY-SA 4.0.
etretinate
Today it means: A retinoid drug C₂₃H₃₀O₃ used especially to treat severe psoriasis that has been withdrawn from use in the U.S. for its tendency to cause birth defects and is typically replaced in treatment by acitretin. Full definition →