Part of speech: Adjective
allowing passage in and out
Example: our unfenced and largely unpoliced border inevitably has been very porous
The word "holey" comes from Middle English holy.
hole – A related word in the same word family.
y – A related word in the same word family.
holy – A related word in the same word family.
Chaucer's Canterbury Tales show how creatively Middle English speakers mixed vocabularies.