new words of the day, week, months

In the course of doing my work and reading about it, I come across the most peculiar words.

Ersatz: is a German word literally meaning substitute or replacement. Although it is used as an adjective in English. (Wikipedia)

Concomitant: existing or occurring with something else, often in a lesser way; accompanying; concurrent: an event and its concomitant circumstances. (Dictionary.com)

8th January, 2008
Tickety-boo : Going smoothly, doing all right (Urban Dictionary)

23rd January, 2008:
Diurnal : (Websters)
a: recurring every day <diurnal tasks> b: having a daily cycle <diurnal tides>2 a: of, relating to, or occurring in the daytime diurnal noises> b: active chiefly in the daytime <diurnal animals> c: opening during the day and closing at night <diurnal flowers>

the list shall continue...