These are unconnected characters, as noted in comment #5905 they do not match and should be kept separate. UK-30451 is the combination of two parts 氵and 劵 whereas U+2DC3C is the combination of 3 parts 氵, 关 and 力 so they have different structures, hence the have different abstract shapes and so should not be unified.

Agree SC=21

Agree TC=24

Agree SC=9

Agree TC=12

Agreed the primary source here is "Recueil des chantes de mariage Thổ de Lạng Sơn et Cao Bằng". Evidence 1 is a secondary source refering to the primary source.

Thank you, ⿰口闪 will be considered for submission.

As comment #11549 observes, that the note at time of submission stated that not all evidences included the dot.

Since the only verified use of this character is in Vietnam then best only a Vietnamese reading be considered for Unihan despite there being a language continuum between Zhuang in China and Tày in Vietnam.

Agree with comment #13853 UK-30880 is in fact a unifiable variant of U+3023C 𰈼 which already has a UK source so withdraw.