What is the origin of abient?

Abient “tending to move away from a stimulus or situation” comes from the Latin term abiēns (stem abient-) “going away,” the present participle of the verb abīre “to go away, exit, depart.” Abīre is formed from the preposition ab “from, away” and the verb īre “to go,” which has two stems: -ient and -it. The verb īre also gives rise to ambīre “to go around,” inīre “to go into, begin,” and trānsīre “to go across, cross,” and to see evidence of all these Latin verbs in English today, compare ambient and ambition, initial and initiate, and transient and transit. The -it stem also pops up in circuit (from Latin circumīre “to go round, circle”), exit (from exīre “to go out”), and even obituary (from obīre “to go toward,” often used euphemistically in the sense “to meet one’s death”). Abient was first recorded in English in the early 1930s.