Sak see. The wife cant quite explain this one, other than to say, "good people have sak see and bad people dont".

From thai.sealang.net (data from Lexitron):

ศักดิ์ศรี sàk sǐi

1 N honour, honor; glory; fame; renown

2 N prestige

SYNONYM: เกียรติ, เกียรติยศ, เกียรติศักดิ์ (SENSE 1)

SYNONYM: เกียรติศักดิ์, เกียรติยศ (SENSE 2)

ETY: (สันสกฤต)

I think "Dignity" or “Respect” would be truer translations in the context mentioned here.

Patrick

In everyday usage I think 'dignity' and 'self respect' come closest.