penetr- root words — words with the penetr- root

The root penetr- comes from Latin penetro, meaning to enter, pierce. 3 words in Dendril are built from it, including impenetrable, penetrable, penetrative. Dendril shows them on a free interactive word map — no signup, no ads.

Words that use the penetr- root

Explore words with penetr- — words containing the penetr- root and sharing its sense of "to enter, pierce". Examples include impenetrable, penetrable, penetrative. Click any word to see its own roots, definition, and related words.

What does penetr- mean?

The penetr- root means to enter, pierce, from Latin penetro. Recognizing it helps you decode and remember the many English words built on this root.