Bottom eye radical - the indexing radical, a pictograph of an upright eye with the pupil shown as the horizontal lines inside. Anchors
眷 in the family of seeing/gaze chars:
看 look,
眼 eye,
睛 pupil,
瞧 gaze,
盼 look forward. Pairs with the rolling-hands above to picture an eye lingeringly turning back - the image behind "attachment, fondness, family one cares for."