0 Old HSK word(s):
因循旧习* *

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

因 cause, reason / by / because (of)
循 obey, comply with, follow
旧 old, ancient / former, past
习 practice / flapping wings
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual