Entry: buttresses (v.)
In context: "'or then the type who sort of overelaborates on the lie, buttresses it with rococo formations of detail and amendment, and that's how you can always tell.'"
Definition: To furnish, sustain, or strengthen with a buttress or support.
Other: From the etymology on the noun-form of the word:
Etymology: perhaps < Old French bouterez nominative singular (or ? plural) of bouteret, ‘flying-buttress’, ‘arc-boutant’ (Godefroy); apparently < bouter to push, bear against.
SNOOT score: 1
Source: Oxford English Dictionary