pertinent
relevant or related to the matter
Roots
- per-: through, thoroughly, or completely
- ten / tain: hold or keep
Other words with the ten / tain root
- abstain: to hold back from doing or taking something
- contain: to hold inside
- content: satisfied; also something held inside
- contented: satisfied or at peace
- detain: to hold back
- discontent: dissatisfaction or unrest
- impertinent: rude or not properly relevant
- malcontent: dissatisfied person, often rebellious or resentful
Per- plus ten gives holding through to the point. A pertinent detail holds to the matter instead of drifting away.
Her pertinent example made the abstract rule easier to apply.