specially
Specially (adv) means For a particular purpose, person, or occasion. Example: “These boots were specially designed for walking in deep snow.”
How to use specially
Learner’s notesIn plain EnglishDone for a specific reason or occasion, or used to mean "particularly."
"Especially" is the more standard choice when you mean "particularly"; "specially" is preferred when you mean "for a specific purpose" (specially made, specially trained).
Fill the gap
Can you complete this real example?
These boots were _____ designed for walking in deep snow.
Etymology
Traced to Middle English specialli, specially, formed from special plus -ly.