pistachio
UK[pɪˈstɑːʃiəʊ]US[pɪˈstæʃiˌoʊ]
n
a small green nut with a hard shell and a slightly sweet flavor
n
the tree that produces these nuts
Etymology
the word 'pistachio' has a long journey through languages, tracing back to a middle persian word 'pistak'. it entered english via italian 'pistacchio', which came from latin 'pistacium', itself borrowed from greek 'pistakion'. the greek term originated from the middle persian source. the path of the word mirrors the historical trade routes of the nut itself, moving from persia into the mediterranean world and eventually into european languages as a unified name for the distinctively green seed.
Analysis
this word is a loanword adopted as a single, unsegmentable unit into english.
Examples
she topped the ice cream with crushed pistachios.
the pistachio tree is native to central asia and the middle east.
for the recipe, you will need a cup of shelled pistachios.