incomer has the recorded history: A native English formation from the verb income (in the older sense 'to come in') plus the agent suffix -er; in- ('in') + come, from Old English cuman ('to come'). Morphologically, the ending is part of the etymology: the suffix is attached to the older base named in the history, producing a later English derivative. In present English, the noun sense is "a person who comes to live in or enter a place from elsewhere", so the historical development ends in a clearly identifiable modern dictionary use. The same base also appears in related forms such as incoming, income, and come. Its semantic neighborhood includes newcomer, immigrant, settler, and arrival, which helps locate the modern sense without adding a separate etymological claim. The named historical forms include Old English cuman and Proto-Indo-European *kʷemH-.