underside
n.
1680s, from under, adj. + side, n.. Similar formation in Dutch onderzijde, Danish underside, German unterseite.
| 词汇 | underside | 
| 词根词缀 | Online Etymology Dictionary underside n. 1680s, from under, adj. + side, n.. Similar formation in Dutch onderzijde, Danish underside, German unterseite. | 
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