'externally-focused' originates from the combination of 'external' and 'focus,' where 'external' is derived from Latin 'externus,' meaning 'outside,' and 'focus' from Latin 'focus,' meaning 'hearth' or 'center.'

'externus' transformed into the Old French word 'externe,' and eventually became the modern English word 'external.' 'Focus' retained its form from Latin to English.

Initially, 'external' meant 'outside,' and 'focus' meant 'center.' Together, they evolved to mean concentrating on outside factors.