The compound word that begins with hear is hearsay.
overweight
Foot print
The word x-ray is a common compound noun. The word Xbox is a proper compound noun.
kingpin
lakefront
somebodysomedaysomehowsomeonesomeplacesomethingsometimesometimessomewhatsomewhere
viewpoint
Handshake.
Compound words beginning with i:iceboxicecapice creamicepickicebreakerintoinkwellinlayinflowinfluxinboundincomingironworkironcladinchwormindoorsinsideinsoleinfuseinstepitselfinmateinroadsinkblot
Xanthene is a chemistry word. It is a chemical compound.
One such word is bottleneck.