Could it be to do with the v-shape? A bed shape? The word itself is derived as having to do with goats - goat meat is also called 'chevron'. You can create a fence panel with a chevron weave or structure a building with chevron beam arrangement. I'm not sure that's any help.
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I've got a photo somewhere of when it was being explained to me. I'll see if I can find it.
The chevron cuttings are the ones in the 2nd row from the front.