密接
みっせつ · missetsu · JLPT N1 · na-adj
connected
密 — 宀 roof + 必 (phonetic) + 山 mountain
Originally referring to a hidden, sheltered place in the mountains, 密 combines 宀 (roof/cover) over 必 (phonetic) with 山 (mountain) at the base. The meaning extended from 'secluded mountain hideaway' to 'dense, close, secret'. Today it commonly means dense, intimate, or secret.
接 — hand 扌 + concubine 妾 (phonetic)
接 is a semantic-phonetic compound. The hand radical 扌 carries the meaning of receiving or joining with the hand, while 妾 supplies the sound. From 'taking with the hand' it broadened to 'receive, meet, connect, join together'.