Words can be formed by prefixation, suffixation, or compounding. Squamish words are able to be subjected to reduplication, suffixation, prefixation. Wodehouse occasionally derives words from phrases using suffixation. Turkish obeys certain principles when it comes to suffixation. Case is expressed via suffixation of the noun. Vowel changes often take place when the suffixation happens. The sibilant aorist is formed with the suffixation of "s" to the stem. Norman "gobe" "hollow in a cliff", with simple suffix "-lin" or double suffixation "-el-in" (cf. This can be seen with suffixation that would otherwise feature voiced geminates. Adjectives are also derived by suffixation of (usually verbal) roots. The earlier phases of Egyptian did this through suffixation. Superlatives are also formed by suffixation, e.g. SMART+MOST 'smartest'. A variety of dative singular endings have been proposed, including zero-marked and -i/-e suffixation. Vowel harmony in Hungarian is most notable when observing suffixation. Hateruma uses morphology and suffixation in its verbs and adjectives.