I cut an onion with a meat knife. Can I put half of the onion in a dairy dish? 🧅🔪

I have a large onion say it's about 4 in long and I cut it in half with a meat knife the meat knife had not been used for 24 hours and I have half the onion left over can I use that second half of the onion can I serve it with a uh Dairy meal so the rule by a by an onion is even if the knife had not been used for 24 hours we consider the taste that's absorbed is it always to be considered fresh regarding onions because onions are spicy food and even if everything is cold we say that the onion is considered now meat and it may not be served with dairy however there is an interesting ruling of the that according toim only the inch closest to where the knife touched became meat let's say in our example there was 2 in of onion the further the first inch away from the knife would remain P however FR ashkan ASM the custom is that we don't differentiate and we consider the whole onion to be meat and this is not to Le to confusion so we just we don't differentiate the entire half of the onion should not be used with a dairy meal