D defs.my
Entry 2 senses Webster, 1913

Comether

/kəmĕʹdhər/ · Co·meth·er · IPA /kəˈmɛðə/
01 n. Matter; affair.
  1. 1.
    Matter; affair.[Dial. or Colloq., Brit.]
  2. 2.
    Friendly communication or association.
    “How does ut come about, sorr, that whin a man has put the comether on wan woman he's sure bound to put ut on another?” — Kipling.
Phrases & compounds
To put the comether on — to exercise persuasion upon; to get under one's influence; to beguile; to wheedle.