Brink and Caruncle

Brink noun - An interval of time just before the onset of something.

Caruncle and brink are semantically related. In some cases you can use "Caruncle" instead a noun "Brink".

Caruncle noun - An outgrowth on a plant or animal such as a fowl's wattle or a protuberance near the hilum of certain seeds.

Brink and caruncle are semantically related. Sometimes you can use "Brink" instead a noun "Caruncle".