The story
Because a baby of this age may be taken into the mother's lap, i.e. on her knee.
Etymology from Wiktionary, CC BY-SA 4.0.
knee baby
Today it means: A young child, slightly older than a baby. Full definition →
Today it means: A young child, slightly older than a baby. Full definition →
Because a baby of this age may be taken into the mother's lap, i.e. on her knee.
Etymology from Wiktionary, CC BY-SA 4.0.