in-, not, non, -tact, contact, 語源的にはtact, contactと同じ。
英語の語源
intact
intact: see entire
intact (adj.)
mid-15c., from Latin intactus "untouched, uninjured, undefiled," from in- "not" (see in- (1)) + tactus, past participle of tangere "to touch" (see tangent (adj.)).
例文
1. Most of the house remains intact even after two hundred years.
200年が経過しても、この家の大部分は完全なままです。
2.He can scarcely survive this scandal with his reputation intact .
このスキャンダルで名誉を傷つけないことは難しい。
3.When a bird 's nest is overturned,no egg can remain intact .
覆巣下に完全卵なし.
4.Despite his misfortunes,his faith and optimism remained intact .
一連の不幸に見舞われたが、彼の自信と楽観は少しも衰えなかった。
5.The glasses remained intact after being dropped.