diagram
n.
1610s, from French diagramme, from Latin diagramma, from Greek diagramma "geometric figure, that which is marked out by lines," from diagraphein "mark out by lines, delineate," from dia- "across, out" (see dia-) + graphein "write, mark, draw" (see -graphy). The verb is 1840, from the noun.
〔蒋〕[dia-对穿，gram画;’上下左右对穿画线”] 图解，图表
〔李〕[dia-=through, across穿过；gram=thing written, or figure书写的东西,图形→“figure made of lines going across it由穿行其间的线条构成的图形”→] n. figure by lines drawn to explain an idea图表，图解