to extend, to spread
| prefix | prefix meaning | root | suffix | word |
| strat | o | strato | ||
| strat | a | strata | ||
| strat | age+em | stratagem | ||
| strat | i | strati | ||
| strat | ify | stratify | ||
| strat | ify+ed | stratified | ||
| strat | ify+ic+ate+ion | stratification | ||
| strat | um | stratum | ||
| strat | um+s | stratums | ||
| strat | us | stratus | ||
| pro | pro-: forward, forth, toward the front | strat | prostrate | |
| pro | pro-: forward, forth, toward the front | strat | ion | prostration |
| sub | sub-: under, beneath, below, lower, subdivision of | strat | substrate | |
| sub | sub-: under, beneath, below, lower, subdivision of | strat | um | substratum |
| super | super-: above, over, beyond | strat | um | superstratum |