| 1 | Old French | librairie | — |
| 2 | Latin | librarium | a bookcase; a library |
| 3 | Latin | librarius | of or pertaining to books; a scribe, copyist,... |
| 4 | Latin | Līber | — |
| 5 | Old Latin | loeber | — |
| 6 | French | lober | to lob |
| 7 | French | lob | lob |
| 8 | English | lob | To throw or hit a ball into the air in a high... |
| 9 | English | long | Having much distance from one terminating point... |
| 10 | English | longitude | Angular distance measured west or east of the... |
| 11 | Old French | longitude | — |
| 12 | Latin | longitūdō | — |
| 13 | Latin | longus | far, long; extended, prolonged; long; tedious,... |
| 14 | Latin | -ē | — |
| 15 | Latin | dis- | asunder, apart, in two; reversal, removal;... |
| 16 | Latin | calceus | shoe |
| 17 | Latin | calx | limestone; chalk; the finish line |
| 18 | Ancient Greek | χάλιξ | small stone, pebble; gravel, rubble |