menstruation;  menstrual period
 last (i.e. immediately preceding);  previous;  pre- (e.g. premodern);  before;  before;  earlier
 un-;  non-;  negative prefix
 part;  portion;  amount;  worth (as in "two days' worth");  one's means;  one's place;  one's duty
 obstacle;  impediment;  hindrance;  handicap;  impairment;  disability