The bronze script of character Float is
The left is Water radical, the right is character Gain - Trust (Post 303),
(shell bone script), a hand catches a child.
Right now, it is a hand holding a child in water, meaning Float. I feel that the original meaning of character Gain-Trust is float, but when people used it as Gain-Trust, so added water radical to make a new character to keep the float meaning, a normal way to create new characters.
The big seal script of the character is