Pertinent means directly to the point being discussed. A pertinent question, pertinent information, highly pertinent.
It is formal and slightly stronger than relevant: pertinent implies the point bears directly on the matter rather than merely touching it. A pertinent question is one that goes to the heart of things. Note impertinent, which now means rude but literally means not pertinent — the sense of cheek came from asking questions that were none of your business.
1adjectivepertinentDirectly to the point being discussed.
“Please keep your questions pertinent to today's topic.”
synonyms: relevant, apposite
pertinent is a quality of relevance.
Latin pertinens comes from pertinere, to reach or belong to — per plus tenere, to hold. Pertain, tenant and contain come from the same holding.
Proto-Indo-European
*ten-
Latin
pertinēns
Old French
pertinent
Middle English
pertinent
English, today
pertinent
Middle English pertinent, borrowed from Old French pertinent and Latin pertinēns.
Etymology from Wiktionary, CC BY-SA