fastness
n.
"a place not easily forced, a stronghold," late Old English fæstnes "firmness, strongness, massiveness, stability; the firmament," from fast, adj. in its older sense of "firm, fixed in place" + -ness.
| 词汇 | fastness | 
| 词根词缀 | Online Etymology Dictionary fastness n. "a place not easily forced, a stronghold," late Old English fæstnes "firmness, strongness, massiveness, stability; the firmament," from fast, adj. in its older sense of "firm, fixed in place" + -ness. | 
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