ichidan verb / intransitive verb:

• to stick; to get stuck; to get caught; to get jammed; to clog
• to be unavailable; to be busy; to be occupied; to be full
• to be piled up (e.g. of work)
• to halt (in one's speech); to stumble (over one's words); to stutter; to stammer
• to feel blocked (of one's chest or throat, due to grief, anxiety, illness, etc.); to feel pressure; to feel pain ➜ 痞える【つかえる】