pater liberos suos amat, the father loves his children.
[Essential Latin Grammar (by Anne Mahoney), page 49.]
Why is liberos=children?
whsiv wrote:I don't really know why, but I can speculate:
My thought has always been that it is based on the perspective of the pater wielding patria potestas. From his view, he has two groups of dependents/property: his servi and his children. In order to distinguish his "non-free" property from his "free" property, this latter group is called liberi.