Note 132 — VII Language as a Historical Product: Drift
Reading edition
Footnote 132: “Its” was at one time as impertinent a departure as the “who” of “Who did you see?” It forced itself into English because the old cleavage between masculine, feminine, and neuter was being slowly and powerfully supplemented by a new one between thing-class and animate-class. The latter classification proved too vital to allow usage to couple males and things (“his”) as against females (“her”). The form “its” had to be created on the analogy of words like “man’s,” to satisfy the growing form feeling. The drift was strong enough to sanction a grammatical blunder.