もう少すこし

も

う

す

こ

し

JLPTN5Freq.FrequencyTop 2,000

Meanings

1

expression

a bit more; a little longer

Used to express a small additional amount, degree, or time. Often appears in requests or when describing a slight insufficiency.

少few, little

もう
もう alone means 'already' or 'more' in certain contexts, but もう少し specifically quantifies a small additional amount.
少すこし
少し means 'a little', while もう少し adds the nuance of 'a little more' or 'a bit longer'.

Compound of もう (more) and 少し (a little). The exact historical derivation is straightforward; the expression is a common modern collocation.