observancy noun.
[ǝb'zǝ:v(ǝ)nsi] M16.[from Latin observantia: see OBSERVANCE, -ANCY.]1. Orig., the action of observing, observation. Later, the quality of being observant or observing.
M16.2. Respectful or obsequious attention.
arch. E17. [TahlilGaran] English Dictionary ▲