To call someone “his father’s son” is to say that he shares his father’s character, habits or way of doing things, for better or worse. It is most often used to explain a trait rather than simply a physical likeness: someone might be his father’s son in his stubbornness, his sense of humour or his approach to money. The phrase can carry a note of inevitability, as if the resemblance was always going to come out sooner or later, and it can be said with approval, resignation or a mix of both.
What’s the origin of the phrase ‘his father’s son’?
The idea behind the phrase is old and appears in Latin long before it settled into English. The anonymous tag patris est filius, meaning literally “he is his father’s son”, is cited alongside the related saying qualis pater, talis filius (“as the father, so the son”) as sources behind the English proverb “like father, like son”. That wider proverb has been recorded in English, in slightly varying forms, since the 1300s, according to the American Heritage Dictionary of Idioms. A printed version from the seventeenth century, “Like father, like son; like mother, like daughter,” turns up in Thomas Draxe’s proverb collection Bibliotheca Scholastica Instructissima of 1616.
“His father’s son” itself works as a plainer, more personal restatement of the same old idea, applied to one specific man rather than offered as a general rule. Rather than stating a proverb about fathers and sons in general, it points at a particular father and son and says the resemblance holds. It is often glossed as equivalent to being a chip off the old block or to the saying that the apple doesn’t fall far from the tree, both ways of saying that a son has turned out very like his dad in the ways that matter.
No single coiner or first printed instance of the exact wording “his father’s son” has been traced. It reads less like a phrase invented at a particular moment than like one version, among several, of a very old family of sayings about children inheriting their parents’ nature.