oncome
/ˈɒnkʌm/ /ˈɒnkəm/noun
1 Scottish. A heavy fall (of rain or snow); = on-ding.
2Originally Scottish. The approach, onset, or (occasionally) progress of something.
Origin
Middle English (in an earlier sense). From on- + come. Compare earlier oncome. Compare Old Icelandic ákváma a hurt, a wound, an eruption resulting from a skin disease; also in phrase úfriðar ákváma an attack, a coming of war.