Is it farther or further?
1809, "to strut" (swanky, n., "attractive young fellow" is recorded from 1508), perhaps related to Middle High German swanken "to sway, totter," and Old High German swingan "to swing." Said to have been a Midlands and southwestern England dialectal word. The noun meaning "ostentatious behavior" is recorded from 1854; adjective sense of "stylish, classy, posh" is from 1913.
Overwhelmingly busy: swamped with projects and tasks