Question

which words share the same word root? check all that apply.

nod
know
noble
unknown
knowable
understand
knowledgeable

Explanation:

Analyze the etymology of each word

To find which words share the same root, we examine the origin and morphological base of each option:

• nod: From Middle English nodden (to shake or bend the head). It has no etymological connection to the others.
• know: From Old English cnāwan, which comes from the Proto-Indo-European (PIE) root \gno-* (to know).
• noble: From Latin nobilis (well-known, famous, noble), which also derives from the PIE root \gno-* (to know).
• unknown: Formed by adding the prefix un- to the past participle known (root: know, PIE \gno-*).
• knowable: Formed by adding the suffix -able to the verb know (root: know, PIE \gno-*).
• understand: From Old English understandan (literally "to stand among"), from PIE \under- and \sta-. It is not related to \gno-*.
• knowledgeable: Derived from knowledge, which comes from Middle English knowleche (root: know, PIE \gno-*).

Group the words sharing the same root

The words know, noble, unknown, knowable, and knowledgeable all trace back to the same Proto-Indo-European root \gno-*, meaning "to know."

Answer:

• nod
• know (Correct answer)
• noble (Correct answer)
• unknown (Correct answer)
• knowable (Correct answer)
• understand
• knowledgeable (Correct answer)