| Prefix with form or fume | 24 |
| Prefix with form or phyll | 25 |
| Prefix with form or port | 24 |
| Prefix with form or sex | 23 |
| Prefix with form or spire | 25 |
| Prefix with form or verse | 25 |
| Prefix with fortune or name | 27 |
| Prefix with freak or friendly | 29 |
| Prefix with freeze or hero | 26 |
| Prefix with freeze or knock | 27 |
| Prefix with functional | 22 |
| Prefix with fuse or fraction | 28 |
| Prefix with glottis or gram | 27 |
| Prefix with god or goddess | 26 |
| Prefix with god or john | 23 |
| Prefix with grade and active | 28 |
| Prefix with grade or cede | 25 |
| Prefix with grade or rocket | 27 |
| Prefix with grain and lane | 26 |
| Prefix with gram and logue | 26 |
| Prefix with gram or buoy | 24 |
| Prefix with gram or center | 26 |
| Prefix with gram or dyne | 24 |
| Prefix with gram or graph | 25 |
| Prefix with gram or liter | 25 |
| Prefix with gram or logical | 27 |
| Prefix with gram or logue | 25 |
| Prefix with gram or marketing | 29 |
| Prefix with gram or meter | 25 |
| Prefix with gram or sode | 24 |
| Prefix with gram or style | 25 |
| Prefix with gram or train | 25 |
| Prefix with gram or tribe | 25 |
| Prefix with gram or type | 24 |
| Prefix with grammatical | 23 |
| Prefix with graph and gram | 26 |
| Prefix with graph or center | 27 |
| Prefix with graph or crat | 25 |
| Prefix with graph or glottis | 28 |
| Prefix with graph or gram | 25 |
| Prefix with graph or meter | 26 |
| Prefix with graph or sailing | 28 |
| Prefix with graph or type | 25 |
| Prefix with graphic or logic | 28 |
| Prefix with graphic or metric | 29 |
| Prefix with graphy or dox | 25 |
| Prefix with hand or foot | 24 |
| Prefix with hap or nomer | 24 |
| Prefix with hap or take | 23 |
| Prefix with head or hole | 24 |
| Prefix with hero or matter | 26 |
| Prefix with horn or stock | 25 |
| Prefix with hydrozoline | 23 |
| Prefix with identification | 26 |
| Prefix with Impressionism | 25 |
| Prefix with impressionist | 25 |
| Prefix with inflammatory | 24 |
| Prefix with information | 23 |
| Prefix with intellectual | 24 |
| Prefix with interference | 24 |
| Prefix with intestinal | 22 |
| Prefix with iron or rib | 23 |
| Prefix with jam or spam | 23 |
| Prefix with john or god | 23 |
| Prefix with john or tasse | 25 |
| Prefix with judge or trial | 26 |
| Prefix with knock or lock | 25 |
| Prefix with knock or nuke | 25 |
| Prefix with lace and weave | 26 |
| Prefix with lace or face | 24 |
| Prefix with lace or lock | 24 |
| Prefix with laryngology | 23 |
| Prefix with lateral or state | 28 |
| Prefix with law or tourist | 26 |
| Prefix with lead or guide | 25 |
| Prefix with lead or read | 24 |
| Prefix with leave or weave | 26 |
| Prefix with legal and graph | 27 |
| Prefix with legal or chute | 26 |
| Prefix with legal or medic | 26 |
| Prefix with legal or normal | 27 |
| Prefix with legal or sailing | 28 |
| Prefix with let or lease | 24 |
| Prefix with liberalism | 22 |
| Prefix with life or size | 24 |
| Prefix with life or wife | 24 |
| Prefix with light or night | 26 |
| Prefix with light or sound | 26 |
| Prefix with like or ability | 27 |
| Prefix with line and section | 28 |
| Prefix with line or mine | 24 |
| Prefix with linguistics | 23 |
| Prefix with link or lock | 24 |
| Prefix with lith and plastic | 28 |
| Prefix with lock and hero | 25 |
| Prefix with lock or knock | 25 |
| Prefix with lock or skid | 24 |
| Prefix with log or center | 25 |
| Prefix with log or lady | 23 |
| Prefix with log or smog | 23 |