[yarddog]

I think it may be spelled “staub” but the spell checker didn’t like either one.

[RegulatorCountry]

It does sound German, but I've never thought to try to trace the etymology. 18th century settlers here were largely German to the point of being the majority for a while, with the balance being English or Scotch-Irish for the most part, so that would make sense as a colloquial survival. From what areas did the people who settled the Florida panhandle originate?

[RegulatorCountry]

Well, I went and looked for it online. Not German. 14th century Scottish.

late 14c., first attested in Scottish English, apparently a dialectal variant of Scottish stob "to pierce, stab," of uncertain origin, perhaps a variant of stub (n.) "stake, nail." Figurative use, of emotions, etc., is from 1590s. Related: Stabbed; stabbing.

[editor-surveyor]

>> “but the spell checker didn’t like either one.” <<

.
The FR spell checker is a bit lame.

It has difficulty with all contracted words, and many verbs in anything but present tense.