Inro is a 4 letter English word. It's valid Words with friends word worth 5 points.
You can make 27 anagrams from letters in inro (inor).
1610-20; Japanese inrō Middle Chinese, equivalent to Chinese yìn signature seal, chop + lǒng round lidded container; the inro was originally used to carry one's chop
An inro, or pill-box, might require several years for perfection, though small enough to go into a fob.
Look at this little netsuke, or inro, or sword-guard, and follow the workman as you admire each detail of the execution.