Crossword Genius

Prefix for "starter" or "linear" (3)

Ross

I believe the answer is:

non

(Other definitions for non that I've seen before include "- - -stick" , "Prefixed negation of a word" , "Prefix meaning not or none" , "Combining form meaning not" , "Negative French word" .)

I've seen this clue in the USA Today.
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