I'm just guessing that maybe you are referring to a male name Kaz, or Kazu, which is normally an abbreviated version (nickname) of longer names such as Kazuo, Kazuhiro, Kazuhiko, Kazutoshi, etc., etc., there are many male names that start with kazu-.
Definition of Quatrain. A quatrain is a verse with four lines, or even a full poem containing four lines, having an independent and separate theme. Often one line consists of alternating rhyme, existing in a variety of forms.
quail 1. n. pl. quail or quails. 1. Any of various primarily ground-dwelling birds of the genus Coturnix, especially C. coturnix, small in size and having mottled brown plumage and a short tail. Also called coturnix. 2. Any of various similar or related birds of the Americas, such as the bobwhite or the California quail.