A — 1: πούς
(Strong's #4228 — Noun Masculine — pous — pooce )

besides its literal meaning, is used, by metonymy, of "a person in motion," Luke 1:79; Acts 5:9; Romans 3:15; 10:15; Hebrews 12:13 . It is used in phrases expressing subjection, 1—Corinthians 15:27 , RV; of the humility and receptivity of discipleship, Luke 10:39; Acts 22:3; of obeisance and worship, e.g., Matthew 28:9; of scornful rejection, Matthew 10:14; Acts 13:51 . Washing the "feet" of another betokened the humility of the service and the comfort of the guest, and was a feature of hospitality, Luke 7:38; John 13:5; 1—Timothy 5:10 (here figuratively).

Acts 7:5
A — 2: βάσις
(Strong's #939 — Noun Feminine — basis — bas'-ece )

lit., "a step" (akin to baino, "to go"), hence denotes that with which one steps, "a foot," and is used in the plural in Acts 3:7 .

B — 1: ποδήρης
(Strong's #4158 — Adjective — poderes — pod-ay'-race )

signifies "reaching to the feet," from pous, and aro, "to fit" (akin to A, No. 1), and is said of a garment, Revelation 1:13 . In the Sept. it is used of the high priest's garment, e.g., Exodus 28:4 .

B — 2: πεζεύω
(Strong's #3978 — Verb — pezos — ped-zyoo'-o )

an adjective, "on foot," is used in one of its forms as an adverb in Matthew 14:13; Mark 6:33 , in each place signifying "by land," in contrast to "by sea." Cp. pezeuo, "to go on foot," Acts 20:13 , RV, "to go by land" (marg., "on foot").

Acts 20:18Acts 21:4 Luke 8:5