Pronunciation: [dɹˈa͡ʊsɪə] (IPA) 
The word drowsier is spelled with a "w" after the "o" because the "w" creates a glide sound between the two vowels. The IPA phonetic transcription of drowsier is /ˈdraʊziər/. The /w/ sound is represented by the IPA symbol /w/. The /aʊ/ sound is represented by the IPA symbol /aʊ/, which combines the vowels /a/ and /ʊ/ to create the diphthong sound "ow." The /ər/ sound at the end of the word is represented by the IPA symbol /ər/.
The term "drowsier" is an adjective derived from the word "drowsy," which describes the state of feeling sleepy or lethargic. When something is referred to as "drowsier," it means that it is more inclined or likely to cause sleepiness or a feeling of being tired. It pertains to the quality or characteristic of inducing or promoting drowsiness.
"Drowsier" can be used to describe a variety of stimuli or circumstances that have a soothing or sedative effect on individuals, making them feel sleepy or less alert. This could include medications, such as sedatives or antihistamines, which often come with a warning about their potential drowsy side effects. Similarly, a quiet and dimly lit room may be described as "drowsier" than a well-lit and lively environment, as it may induce a sense of relaxation and sleepiness.
Furthermore, the term "drowsier" can be used to compare different levels of drowsiness or sleepiness. For instance, if a person claims to be feeling drowsier than usual, they are expressing that they are feeling sleepier or more fatigued than they typically experience.
In summary, "drowsier" refers to something that has an increased propensity or ability to induce drowsiness or sleepiness, or a state of being more sleepy or lethargic compared to a previous state or comparison point.
The word "drowsier" is derived from the base word "drowsy" which dates back to the late 15th century. The term comes from the Middle English word "drowsi", which originally meant "sluggish" or "liable to sleep". It can be traced further back to the Old English word "drūsian", meaning "to be sluggish" or "to be lazy". The exact origin of "drowsy" beyond Old English is uncertain, but it may potentially be related to the Middle High German word "trūsen", meaning "to nod off" or "to doze".
