Rafsi - affix , word-forming ( lujvo- forming) combination form or morphological unit of Lojban gismu . Each gismu has two to five rafsi . Rafsi cannot be used on their own, but can be combined, thereby creating lujvo (a more complex word that takes its meaning from gismu , each rafsi of which it consists (in accordance with the rules for grouping lojban)). Rafsi is not used alone, however, words can be spelled or spoken in the Lojban text in the same way as some rafsi .