| Prefix for poise and valence | 28 |
| Prefix for poise | 16 |
| Prefix for point | 16 |
| Prefix for pod or plane | 23 |
| Prefix for pod or corn | 22 |
| Prefix for pod or angle | 23 |
| Prefix for pod | 14 |
| Prefix for ply or tude | 22 |
| Prefix for plus | 15 |
| Prefix for plunk or plop | 24 |
| Prefix for plunk | 16 |
| Prefix for plop or plunk | 24 |
| Prefix for plop or choo | 23 |
| Prefix for plop | 15 |
| Prefix for play or band | 23 |
| Prefix for plasm | 16 |
| Prefix for plane or space | 25 |
| Prefix for plane or sol | 23 |
| Prefix for plane or marine | 26 |
| Prefix for plane or dynamics | 28 |
| Prefix for plane or dynamic | 27 |
| Prefix for pitch | 16 |
| Prefix for pipe cleaners | 24 |
| Prefix for pilot | 16 |
| Prefix for phyte | 16 |
| Prefix for physics or turf | 26 |
| Prefix for physics or thesis | 28 |
| Prefix for physics or phor | 26 |
| Prefix for physics | 18 |
| Prefix for physicist | 20 |
| Prefix for physical | 19 |
| Prefix for phyll | 16 |
| Prefix for phrase or physical | 29 |
| Prefix for photo or scope | 25 |
| Prefix for phone or watt | 24 |
| Prefix for phone or ton | 23 |
| Prefix for phone or post | 24 |
| Prefix for phone or cycle | 25 |
| Prefix for phone or bucks | 25 |
| Prefix for phone | 16 |
| Prefix for phobia or bat | 24 |
| Prefix for phobia | 17 |
| Prefix for philately | 20 |
| Prefix for phenomenon | 21 |
| Prefix for perspirant | 21 |
| Prefix for penultimate | 22 |
| Prefix for pedic | 16 |
| Prefix for pede or grade | 24 |
| Prefix for path | 15 |
| Prefix for pasto | 16 |
| Prefix for partite | 18 |
| Prefix for pad or port | 22 |
| Prefix for Norman or Saxon | 26 |
| Prefix for normal | 17 |
| Prefix for nomy or logy | 23 |
| Prefix for night or day | 23 |
| Prefix for net or state | 23 |
| Prefix for nautics | 18 |
| Prefix for nautical | 19 |
| Prefix for naut or gram | 23 |
| Prefix for naut | 15 |
| Prefix for national | 19 |
| Prefix for natal | 16 |
| Prefix for name or real | 23 |
| Prefix for mutuel | 17 |
| Prefix for mural or venous | 26 |
| Prefix for mural or state | 25 |
| Prefix for mural | 16 |
| Prefix for motor or control | 27 |
| Prefix for motive | 17 |
| Prefix for motion | 17 |
| Prefix for morph or skeletal | 28 |
| Prefix for morph or plasm | 25 |
| Prefix for morons? | 18 |
| Prefix for monde | 16 |
| Prefix for modern | 17 |
| Prefix for mode or king | 23 |
| Prefix for mobile or pilot | 26 |
| Prefix for mix or fix | 21 |
| Prefix for mission | 18 |
| Prefix for millions | 19 |
| Prefix for metrical | 19 |
| Prefix for metric or tonic | 26 |
| Prefix for metric and tope | 26 |
| Prefix for metric | 17 |
| Prefix for meter or winkle | 26 |
| Prefix for meter or tude | 24 |
| Prefix for meter or tribe | 25 |
| Prefix for meter or spore | 25 |
| Prefix for meter or scope | 25 |
| Prefix for meter or pede | 24 |
| Prefix for meter or liter | 25 |
| Prefix for meter or gram | 24 |
| Prefix for meter | 16 |
| Prefix for mentioned | 20 |
| Prefix for medic or psychology | 30 |
| Prefix for medic or graph | 25 |
| Prefix for medic | 16 |
| Prefix for mature or dominant | 29 |
| Prefix for matter | 17 |