The word for today is…
filial (adjective):

1 : of, relating to, or befitting a son or daughter
2 : having or assuming the relation of a child or offspring

Source : Merriam -Webster

Etymology : Filial is descended from Latin filius, meaning “son,” and filia, meaning “daughter,” and in English (where it has been used since at least the 14th century) it has always applied to both sexes. The word has long carried the dutiful sense “owed to a parent by a child,” as found in such phrases as “filial respect” and “filial piety.” These days it can also be used more generally for any emotion or behavior of a child to a parent. You might suspect that filia is also the source of the word filly, meaning “a young female horse” or “a young girl,” but it isn’t. Rather, filly is from Old Norse fylja.

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David Theobald

David Theobald

David is a retired surgeon originally from London who came to New Zealand twenty-six years ago having got delayed in Singapore for thirteen years after leaving the UK. He was coerced into studying Latin...