Final answer:
The phrase 'Wither, tither, lather' contains the poetic element of alliteration, which is the repetition of initial consonant sounds at the beginning of words, creating a rhythmic effect.
Step-by-step explanation:
The poetic element in the phrase 'Wither, tither, lather' is alliteration. Alliteration is a literary device that consists of the repetition of initial consonant sounds at the beginning of words. For example, in the line 'There come soft rains' by Sarah Teasdale, the repetition of the 's' sound is a clear use of alliteration. Similarly, in the phrase 'Wither, tither, lather', the 'th' and 'l' sounds are repeated at the start of each word, creating a rhythmic and pleasing auditory effect that is characteristic of alliteration.
While reading poetry, it is beneficial to pay attention to how words sound when spoken aloud. This approach helps to appreciate the sensual and tactile qualities of the language used. Elements of poetry such as alliteration work interdependently with other poetic devices to enhance the overall effect and meaning of a poem.