the.com/tooth
the only part of you that can't heal itself, yet outlasts everything else you are
means One of the hard, white, bony structures set in the jaws, used for biting and chewing.
from From Old English 'tōþ', going back to a Proto-Germanic root that also gave German 'Zahn' and Dutch 'tand'. Further back lies the Proto-Indo-European root *dent-/*dont-, the same source that surfaces in Latin 'dens, dentis' (hence 'dental') and Greek 'odous'. So the homely English 'tooth' and the clinical 'dentist' are distant cousins, both gnawing at the same ancient word.
hardest tissueenamel is the toughest substance your body makes
no repairunlike bone, damaged enamel never grows back
survives youteeth outlast flesh, naming the dead in graves
baby stashadult teeth wait hidden in the jaw for years
ancient ledgerisotopes in enamel reveal where someone grew up