ト, は.く, つ.く

spit, vomit, belch, confess, tell (lies)

JLPT1 G7 S6 F1674

As per # (pile) + mouth → pile of vomited objects → *spew/vomit* → *exhale*; *belch*; *disgorge*; *spit*. Also, *utter* and *say*.

[Full Kanji Etymology List]