| Subject | English | Spanish |
| med. | African lethargy | tripanosomiasis africana (morbus dormitivus) |
| med. | African lethargy | tripanosomiasis del Congo (morbus dormitivus) |
| med. | African lethargy | nelaván (morbus dormitivus) |
| med. | African lethargy | enfermedad del sueño (morbus dormitivus) |
| med. | deep lethargy | Carus |
| med. | induced lethargy | estado de hipnosis |
| nat.sc. | wintry lethargy | letargo invernal |