diagnose
v.診斷；分析；判斷
→ gn，to know；-ose，having the quality of

diagram
n.圖表，圖樣（sketch，graph）→ gram，to write

dialogue
n.對話（dialog）→ log，talk

diameter
n.直徑 → meter，measure

diaphanous
a.透明的（transparent）；澄清的 → plan，to show

diastrophism
n.（地質）地殼變動
→ stroph，to fall；-ism，state，quality，ac

diathermancy
n.傳熱性（diathermance）→ therm，heat

diatribe
n.惡罵；苛評；激烈爭論 → trib，to rub 摩擦