a wee bit
僅 centers on a very small amount or degree: just a little, a tiny bit, barely enough to notice.
僅 combines 亻 (person) with 堇, which likely contributes the sound and carries a sense of scarcity or smallness. The exact historical development of 堇 is uncertain.
A person 亻 standing beside 堇, which looks like a small, sparse plant struggling to grow. Together they suggest something barely there: just a wee bit.
For キン, imagine a tiny kin (family member) who is so small they are just a wee bit of a person: kin -> キン.
a little; a few; small; slight; trifling; meagre; meager; narrow (margin)
narrow margin; slim margin
a little; a few; small; slight; trifling; insignificant; narrow (margin)
derisory; negligible; minimal; nominal; imperceptible
small amount; jot; nothing much; (to a) slight degree; wee bit
life is short; life is just fifty years
only; just; merely; no more than
(nothing) but a little
only slightly; small amount
slightly; a little
narrow majority; shade of difference