Two lovely words I have recently found (they were under the couch!) Exculpatory: from ex (from, out of) and culpa (sin) - a form to explain that someone is not guilty. Pronounced (I think) ehks-CULP-a-toree.\ and menisci, plural of meniscus from the Greek for "crescent"). Also happens to be a part of your knee.
At the checkout at the Cosi near where I work, I accidentally stood in front of someone to get my coffee. I apologized and he graciously gestured for me to continue. "All I have is time," he says. Lovely little phrase and pause for thought. Thank you random person.