"aback" meaning in Scots

{
  "derived": [
    {
      "_dis1": "0 0 0",
      "word": "aback o'"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "sco",
        "2": "enm",
        "3": "abak"
      },
      "expansion": "Middle English abak",
      "name": "inh"
    },
    {
      "args": {
        "1": "sco",
        "2": "ang",
        "3": "onbæc"
      },
      "expansion": "Old English onbæc",
      "name": "inh"
    },
    {
      "args": {
        "1": "sco",
        "2": "a",
        "3": "back"
      },
      "expansion": "a- + back",
      "name": "prefix"
    }
  ],
  "etymology_text": "From Middle English abak, from Old English onbæc, equivalent to a- + back.",
  "head_templates": [
    {
      "args": {
        "1": "sco",
        "2": "adverb"
      },
      "expansion": "aback",
      "name": "head"
    }
  ],
  "lang": "Scots",
  "lang_code": "sco",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "_dis": "39 14 47",
          "kind": "other",
          "name": "Scots entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "40 28 31",
          "kind": "other",
          "name": "Scots terms prefixed with a-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "behind, in the rear"
      ],
      "id": "en-aback-sco-adv-o-YNuZx~",
      "links": [
        [
          "behind",
          "behind"
        ],
        [
          "rear",
          "rear"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "39 14 47",
          "kind": "other",
          "name": "Scots entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "away, aloof, off"
      ],
      "id": "en-aback-sco-adv-qQY4l6hN",
      "links": [
        [
          "away",
          "away"
        ],
        [
          "aloof",
          "aloof"
        ],
        [
          "off",
          "off"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "39 14 47",
          "kind": "other",
          "name": "Scots entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "since, ago"
      ],
      "id": "en-aback-sco-adv-zB8xp62G",
      "links": [
        [
          "since",
          "since"
        ],
        [
          "ago",
          "ago"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əˈbɑk/"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0 0",
      "word": "a-back"
    }
  ],
  "word": "aback"
}

{
  "categories": [
    "Pages with 2 entries",
    "Pages with entries",
    "Scots adverbs",
    "Scots entries with incorrect language header",
    "Scots lemmas",
    "Scots terms derived from Middle English",
    "Scots terms derived from Old English",
    "Scots terms inherited from Middle English",
    "Scots terms inherited from Old English",
    "Scots terms prefixed with a-"
  ],
  "derived": [
    {
      "word": "aback o'"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "sco",
        "2": "enm",
        "3": "abak"
      },
      "expansion": "Middle English abak",
      "name": "inh"
    },
    {
      "args": {
        "1": "sco",
        "2": "ang",
        "3": "onbæc"
      },
      "expansion": "Old English onbæc",
      "name": "inh"
    },
    {
      "args": {
        "1": "sco",
        "2": "a",
        "3": "back"
      },
      "expansion": "a- + back",
      "name": "prefix"
    }
  ],
  "etymology_text": "From Middle English abak, from Old English onbæc, equivalent to a- + back.",
  "head_templates": [
    {
      "args": {
        "1": "sco",
        "2": "adverb"
      },
      "expansion": "aback",
      "name": "head"
    }
  ],
  "lang": "Scots",
  "lang_code": "sco",
  "pos": "adv",
  "senses": [
    {
      "glosses": [
        "behind, in the rear"
      ],
      "links": [
        [
          "behind",
          "behind"
        ],
        [
          "rear",
          "rear"
        ]
      ]
    },
    {
      "glosses": [
        "away, aloof, off"
      ],
      "links": [
        [
          "away",
          "away"
        ],
        [
          "aloof",
          "aloof"
        ],
        [
          "off",
          "off"
        ]
      ]
    },
    {
      "glosses": [
        "since, ago"
      ],
      "links": [
        [
          "since",
          "since"
        ],
        [
          "ago",
          "ago"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əˈbɑk/"
    }
  ],
  "synonyms": [
    {
      "word": "a-back"
    }
  ],
  "word": "aback"
}