Pronunciation: [haθ ˈa͡ɪ ˈɒn] (IPA) 
The phrase "hath eye on" is spelled with the "th" digraph, which indicates the voiceless dental fricative sound /θ/. This is different from the voiced dental fricative sound /ð/, which is represented by the letter "d." The "a" and "e" in "hath" are pronounced as a diphthong /æɪ/, while "eye" is pronounced as a monophthong /aɪ/. The stress falls on the first syllable of "hath" and the second syllable of "eye."
The phrase "hath eye on" is an idiomatic expression rooted in Old English that refers to the act of closely observing or monitoring someone or something. The term "hath" is an archaic form of the verb "to have," originating from Middle English. "Eye on" is a metaphorical description of attention or focus, derived from the function of the eyes as a primary sense organ for perceiving the world. Thus, when someone "hath eye on" a particular subject, person, or situation, they are actively watching, scrutinizing, or supervising it.
The phrase implies a level of cautious awareness or surveillance, suggesting that one is keeping a watchful eye on a specific target. This watchfulness may be driven by various intentions, such as ensuring safety, seeking opportunities, gaining knowledge, or detecting any potential risks or threats. "Hath eye on" can apply to both literal and figurative contexts, encompassing areas like personal relationships, professional environments, business matters, or even a social or political arena.
In summary, "hath eye on" means to have a deliberate and attentive focus, maintaining a vigilant observance of a certain individual, object, or situation. It implies a conscious act of monitoring, often paired with the intention of gaining insight, control, or protection.
