Local Loop

I find my Samsung phone’s auto-complete behavior peculiar:

For some months now, when I hit ‘h’ instead of ‘g’ when typing ‘get’, it auto-completes ‘het’ as ‘heterosexual’. Then, just a few minutes ago I was typing ‘it’, and got ‘ostensibly’ (no idea how).

These can’t be particularly common n-grams in my writing. In fact, I’m fairly certain I’ve never typed those words into this device. Why does it pick them?…

The mind boggles.