- gravis (Adjektiv)
- severus (Adjektiv)
- gravitas (Nomen)
- serius (Adjektiv)
- sermo (Adverb)
- adductus (Adjektiv)
- adseveranter (Adverb)
- adseverate (Adverb)
- asseverate (Adverb)
- asseveratio (Nomen)
- attentus (Adjektiv)
- austere (Adverb)
- graviter (Adverb)
- injustitia (Nomen)
- serii (Nomen)
- serio (Adverb)
- seriose (Adverb)
- serium (Nomen)