once in every fortnight or at two-week intervals.

favoring one person, faction, etc. more than another; biased; prejudiced.

a periodical issued at two-week intervals or once in every fifteen days; a fortnightly.

a small gate by the side of a main entrance of a temple, town, etc.

the moon, who passes alternatively through fortnights of waxing and waning.

a biased, prejudiced man.