IPA: /ɪkˈspiːdiənsi/
KK: /ɛkˈspidɪənsi/
The quality of being convenient and practical despite possibly being improper or immoral; the state of being expedient.
In the interest of expedience, the team decided to take a shortcut that might not be the best option in the long run.
Expedience is formed from "ex-" (meaning out of or from) and "pedere" (meaning to foot or to walk). The word originally referred to the act of getting out of a situation or moving forward effectively, thus implying a sense of practicality or convenience in action.
Think of 'getting out of' a situation ('ex-') and 'walking' ('pedere') towards a solution — that's why expedience means acting in a practical or convenient way.