different between snailless vs sailless

English

snail +? -less

snailless (not comparable)

Without snails.
- 1960, Journal of Conchology (volume 24, page 310)
  The possibility of cattle or horses transporting small snails in mud or wisps of weed on their hooves from another pond seems most unlikely, as the only other pond in the field is permanently foul and snailless […]

sail +? -less

sailless (not comparable)

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