at one's feet, underfoot, the ground / the bottom of the foot / a foothold, one's footing / gait, pace, step / someone's surroundings, the nearby / recent events

(archaic) at one's feet, underfoot / (archaic) one's family and status, where one stands in the world

at one's feet, underfoot / an epithet used in written correspondence to show respect to the addressee / a pair of high clogs, worn in rainy weather

(formal, archaic) second-person pronoun: you

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

What? What did you say?

whatchamacallit, X

what

What?, Huh?

what / that thing (used in place of words you can't remember at the moment.)