tooth

• 歯
• vt.歯......。
• vi.
• n. （歯）人の名前；（英）Tuth.

古英語 toth（複数形 teth,）から、原ゲルマン語 *tan-thuz から、PIE *dent, tooth から、*ed, to eat, bite から、語源的には eat, edible と同じ、-ent, 現在分詞格。

tooth

tooth: [OE] Etymologically, a tooth is an ‘eater’. Its ultimate source is the prehistoric Indo- European base *ed- ‘eat’, which also lies behind English eat and edible. From this was formed the noun *dont-, *dent- ‘tooth’, whose descendants include Latin dēns ‘tooth’ (source of English dentist, indent, trident [16], etc), Greek odón ‘tooth’, (source of English odontology [19]), Welsh dant ‘tooth’, and prehistoric Germanic *tanthuz. This evolved into German zahn, Dutch, Swedish, and Danish tand, and English tooth. A variant of *tanthuz may lie behind English tusk.
=> dentist, eat, edible, indent, odontology, trident, tusk

tooth (n.)

Old English toe (plural tee), from Proto-Germanic *tan-thuz (cognates: Old Saxon, Danish, Swedish, Dutch tand, Old Norse t?nn, Old Frisian toth, Old High German zand, German Zahn, Gothic tuntus), from PIE *dent- "tooth" (cognates: Sanskrit danta, Greek odontos, Latin dens, Lithuanian dantis, Old Irish det, Welsh dent). Plural form teeth is an instance of i-mutation.

Application to tooth-like parts of other objects (saws, combs, etc.) first recorded 1520s. Tooth and nail as weapons is from 1530s. The tooth-fairy is attested from 1964.

1. A dentist may decide to extract the tooth to prevent recurrent trouble.

歯医者は反復発作を起こさないようにその歯を抜くことを決定する可能性がある。

2.When not removed,place causes tooth decay and gum disease.

歯垢は除去しないと歯の虫食いや歯肉疾患につながる。

3.He fought tooth and nail to keep his job.

彼は全力を尽くして自分の仕事を守った。

4.I got an abscess so he took the tooth out.

私は歯肉膿瘍なので、彼はその歯を抜いた。

5.We went over that area with a fine- tooth

私たちはその地域を徹底的に捜索しました。