相伴
xiāng bàn · HSK 7
to accompany each other
👫 相 (mutual) + 伴 (companion) = keep each other company
相 carries the each-other sense seen in 相互 (mutual); 伴 is companion, as in 伙伴 (partner). Together they mean two people accompanying one another.
伴 — person radical 亻 + half 半
A semantic-phonetic compound: 亻(person) gives the meaning and 半 (bàn, 'half') supplies the sound while also hinting at 'one of a pair.' The original sense was 'companion' or 'partner,' someone who is your other half, and from there it extended to 'accompany.'