Picture an arrow. It is not resting on the house; it is pointed at it, with the distance still to cover. That arrow is what the ending -ward puts into a word, the same ending in upward, forward and toward. Homeward is that arrow with home at the far end. Everything this word does is a way of using the arrow: a person walking along it, a bus whose nose is turned down it, or a ship whose whole course has been set along it.
From the word’s history
From Middle English homward, from Old English hamweard, which is simply home plus -ward. The word has always been home with a direction attached.
來自中古英文 homward，再往前是古英文 hāmweard，就是 home 加上 -ward。這個字從頭到尾都是「家」加上一個方向。
Wiktionary entry for homeward (adv.), source_ref kaikki:3f6f69a190036ae4:888964800, supplied in this batch's evidence packet
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