stratio-, strati-, strato-, strat-, -stratus

(Latin: horizontal layer; "stretched, spread out"; layer, cloud layer; to strew)

strayer
street
substratosphere
The lowest layer of the earth's atmosphere, at a height of about 12 miles or 20 kilometers above the earth.
substratum, subsratal, substrative
1. An underlying base, layer, or element.
2. In agriculture, subsoil.
3. In geology, bedrock.
4. In biology, the non-living material or base on which an organism lives or grows.