both
From LSJ
βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόν → once limpid waters are stained with mud, you'll never find a drink
English > Greek (Woodhouse)
adjective
P. and V. ἄμφω, ἀμφότεροι (neuter only in V.).
both together: P. συνάμφω, συναμφότεροι.
tearing her hair with the fingers of both hands: V. κόμην σπῶσ' ἀμφιδεξίοις ἀκμαῖς (Sophocles, Oedipus Rex 1243).
from both sides, adv.: P. ἀμφοτέρωθεν.
in both ways, adv.; P. ἀμφοτέρως.