The Collaborative International Dictionary of English v.0.48:
pastis \pastis\ (p[.a]*st[=e]s") n. [F., ca. 1925] An anise-based liqueur similar to absinthe but yellowish in color and containing no wormwood. [WordNet 1.5]WordNet (r) 3.0 (2006):
pastis n 1: similar to absinthe but containing no wormwood