| Part of speech | unknown part of speech |
|---|
| Catalan | endurir; trempar |
|---|---|
| Dutch | harden; stalen; temperen |
| English | harden; temper; season; steel; toughen |
| Faeroese | herða |
| French | durcir; tremper |
| German | hart machen; härten; abhärten; stählen; erhärten; abbinden; wappnen |
| Portuguese | endurecer; enrijar; temperar |
| Saterland Frisian | hädje; häd moakje; stäilje |
| Spanish | endurecer; templar |