造诣

造诣	zào yì	level of mastery (of a skill or area of knowledge) / (archaic) to pay a visit to sb
造	zào	to make / to build / to manufacture / to invent / to fabricate / to go to / party (in a lawsuit or legal agreement) / crop / classifier for crops
诣	yì	to go (to visit a superior) / one's current attainment in learning or art