| 1 | English | morphism | An arrow in a category; an abstraction that... |
| 2 | English | isomorphism | Similarity of form; A one-to-one correspondence |
| 3 | English | ISO | A disk image of an ISO 9660 file system ; also... |
| 4 | Greek | ίσος | equal; having equal rights |
| 5 | Ancient Greek | ἴσος | equal , equivalent , the same as; equal to ; ... |
| 6 | Ancient Greek | δάκτυλος | finger; measure of length, the breadth of a... |
| 7 | Hebrew | דקל | palm tree; date; dachshund |
| 8 | German | Dackel | dachshund; a similar-looking dog, e.g. a basset... |
| 9 | German | Dachshund | dachshund; a similar-looking dog, e.g. a basset... |
| 10 | German | Dachs | badger; genitive singular of Dach |
| 11 | Old High German | dahs | — |
| 12 | Proto-West Germanic | þahs | badger |
| 13 | Proto-Germanic | þahsuz | badger |
| 14 | Proto-Indo-European | tótḱus | — |
| 15 | Proto-Indo-European | tetḱ- | to create, produce; to cut, hew |
| 16 | Proto-Indo-European | teḱ- | to sire, beget |