What is hayman?
The name Hayman reached English shores for the first time with the ancestors of the Hayman family as they migrated following the Norman Conquest of 1066. The Hayman family lived in Warwickshire. The Hayman, however, does not refer to that area, but is a topographical reference to an enclosure of some sort. The name was originally derived from the Old English word haye, which meant enclosure.
Alternatively, the name could have been an occupational one that referred to "the hayman" or seller of hay.
English: topographic name probably from Middle English hai(e), hei(e) 'enclosure' (Old English (ge)hæg), denoting a dweller by an enclosure (see Hay 2 ), or else a nickname for a 'keeper of the enclosure' (compare Hayward ).