intersperse

To distribute among other things at intervals.

To supply or diversify with things distributed at intervals.

To scatter between; place here and there among other things: as, to intersperse shrubs among trees.

To diversify by scattering or disposing various objects here and there.

To scatter or set here and there among other things; to insert at intervals.

To diversify or adorn with things set or scattered at intervals; to place something at intervals in or among.

To mix two things irregularly, placing things of one kind among things of other:

place at intervals in or among

introduce one’s writing or speech with certain expressions