The word "infirmer" is spelled with an "e" in the middle, despite the fact that it is not pronounced. This is because the suffix "-er" is added to the root word "infirm," which means weak or ill. In IPA phonetic transcription, this word is spelled /ɪnˈfɜrmər/ which accurately represents the stress on the second syllable and the muted "e" sound in the middle. "Infirmer" is a noun that refers to someone who cares for the sick or infirm, such as a nurse or caregiver.
The word "infirmer" does not have its own separate etymology as it is a derivative form of the word "infirm", which has its origins in Late Middle English. The word "infirm" comes from the Latin word "infirmus", which means "weak" or "unstable". The Latin word "infirmus" is a combination of the prefix "in", meaning "not", and "firmus", meaning "firm" or "strong". Therefore, the term "infirmer" would carry the same etymological roots as "infirm", denoting something or someone that is weaker or less sturdy.