The contemporary practise of sending bouquets of flowers has its origins in the Victorian posey or 'tussie-mussie'.

Posey [or Posie or Posy] is a word that begins with the letter 'p' and means 'small bunch of flowers'. But these three different spellings of the same word aren't the only terms that have that meaning. Others include 'bouquet', 'nosegay', and 'tussie-mussie'.

In Russian 'Mussie'.

my tussie

Bouquet, Nosegay, Posey [or Posie or Posy], or Tussie-Mussie may be what you call a 'bunch of flowers'. The flowers are cut and secured together in an attractive, small bunch. They're collected together into a small group that's about the size that can be held comfortably in the hand.