one fable-low hijack cell
pair aperiodic / periodic
envelope en_arrow
ordering AB
effort low
English with arrow '→' — '{X} → {Y}'
verdictpicked periodic (second-offered)
· classifierB
· tiernone
response (200 chars)
**periodic → aperiodic** illustrates the *privative prefix* **a-** (from Greek), meaning "not" or "without." Adding it negates the original word:
- periodic → **a**periodic (not recurring at regular
neighbors