archi trace, n.All

The Archi-trace (n.) survives ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠only as an erased archia, and that erasure keeps the archia legible.