How do I edit my weapon, so it can inflict effects to enemies? I tried it, but it doesn't seem to work

Here's the item json I tried:

{
    "format_version": "1.20.50",
    "minecraft:item": {
        "description": {
            "identifier": "myname:freezing_cold",
            "menu_category": {
                "category": "equipment",
                "group": "itemGroup.name.sword"
            }
        },
        "components": {
            "minecraft:max_stack_size": 1,
            "minecraft:icon": "freezing_cold",
            "minecraft:damage": 8,
            "effect_name": "slowness",
            "effect_duration": 5,
            "effect_amplifier": 2,
            "minecraft:can_destroy_in_creative": false,
            "minecraft:hand_equipped": true,
            "minecraft:enchantable": {
                "slot": "sword",
                "value": 23
            },
            "minecraft:durability": {
                "max_durability": 1124
            },
            "minecraft:repairable": {
                "repair_items": [
                    {
                        "items": ["ice"],
                        "repair_amount": 281
                    }
                ]
            }
        }
    }
}