seemer
noun/ˈsiːməɹ/
Etymology From seem + -er.
1
Rare A person who, or a thing which, seems.
- The Seemers. Things are not always what they seem […]1991, Marion D. Hanks, Bread Upon the Waters, page 51:
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.